
The Oregon boundary dispute or the Oregon Question was a 19th-century
territorial dispute
A territorial dispute or boundary dispute is a disagreement over the possession (law), possession or control of territories (land, maritime territory, water or airspace) between two or more political entities.
Context and definitions
Territorial ...
over the political division of the
Pacific Northwest
The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...
of
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
between several nations that had competing territorial and commercial aspirations in the region.
Expansionist competition into the region began in the 18th century, with participants including the
Russian Empire
The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
,
Great Britain
Great Britain is an island in the North Atlantic Ocean off the north-west coast of continental Europe, consisting of the countries England, Scotland, and Wales. With an area of , it is the largest of the British Isles, the List of European ...
,
Spain
Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
, and the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
. After the
War of 1812
The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...
, the Oregon dispute took on increased importance for diplomatic relations between the British Empire and the fledgling American republic. In the mid-1820s, the Russians signed the
Russo-American Treaty of 1824 and the
Russo-British Treaty of 1825, and the Spanish signed the
Adams–Onís Treaty
The Adams–Onís Treaty () of 1819, also known as the Transcontinental Treaty, the Spanish Cession, the Florida Purchase Treaty, or the Florida Treaty,Weeks, p. 168. was a treaty between the United States and Spain in 1819 that ceded Florida to ...
of 1819, by which Russia and Spain formally withdrew their respective territorial claims in the region, and the British and the Americans acquired residual territorial rights in the disputed area. But the question of sovereignty over a portion of the North American
Pacific
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the cont ...
coast was still contested between the United Kingdom and the United States. The disputed area was defined as the region west of the
Continental Divide of the Americas
The Continental Divide of the Americas (also known as the Great Divide, the Western Divide or simply the Continental Divide; ) is the principal, and largely mountainous, hydrological divide of the Americas. The Continental Divide extends from t ...
, north of Mexico's
Alta California
Alta California (, ), also known as Nueva California () among other names, was a province of New Spain formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but was made a separat ...
border of
42nd parallel north
The 42nd parallel north is a circle of latitude that is 42 degree (angle), degrees true north, north of the Earth, Earth's equator, equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atla ...
, and south of
Russian America
Russian(s) may refer to:
*Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries
*A citizen of Russia
*Russian language, the most widely spoken of the Slavic languages
*''The Russians'', a b ...
at parallel 54°40′ north. The British generally called this region the
Columbia District
The Columbia District was a fur-trading district in the Pacific Northwest region of North America, in both the United States and British North America in the 19th century. Much of its territory overlapped with the temporarily jointly occupi ...
and the Americans generally called it
Oregon Country
Oregon Country was a large region of the Pacific Northwest of North America that was subject to a long Oregon boundary dispute, dispute between the United Kingdom and the United States in the early 19th century. The area, which had been demarcat ...
.
During the
1844 United States presidential election
United States presidential election, Presidential elections were held in the United States from November 1 to December 4, 1844. Democratic Party (United States), Democratic nominee James K. Polk narrowly defeated Whig Party (United States), Whi ...
campaign, the
Democratic Party proposed ending the Oregon Question by annexing the entire area. The
U.S. Whig Party, in contrast, evinced no interest in the question – due, some scholars have claimed, to the Whig view that it was unimportant compared to other domestic problems. The Democratic candidate,
James K. Polk, invoked the popular theme of
manifest destiny
Manifest destiny was the belief in the 19th century in the United States, 19th-century United States that American pioneer, American settlers were destined to expand westward across North America, and that this belief was both obvious ("''m ...
and appealed to voters'
expansionist
Expansionism refers to states obtaining greater territory through military empire-building or colonialism.
In the classical age of conquest moral justification for territorial expansion at the direct expense of another established polity (who ...
sentiments in pressing for annexation, and defeated the Whig candidate,
Henry Clay
Henry Clay (April 12, 1777June 29, 1852) was an American lawyer and statesman who represented Kentucky in both the United States Senate, U.S. Senate and United States House of Representatives, House of Representatives. He was the seventh Spea ...
. Polk then sent the British government an offer to agree on a partition along the
49th parallel (which had been previously offered).
However, the resulting negotiations soon faltered: the British still pressed for a border along the Columbia River. Tensions grew as American expansionists, such as
Senator
A senate is a deliberative assembly, often the upper house or Legislative chamber, chamber of a bicameral legislature. The name comes from the Ancient Rome, ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior ...
Edward A. Hannegan of
Indiana
Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
and
Representative Leonard Henly Sims of
Missouri
Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
, urged Polk to annex the entire Pacific Northwest all the way to the 54°40′ parallel north (which is what the Democrats had called for during the presidential campaign). These tensions gave rise to
slogans
A slogan is a memorable motto or phrase used in a clan or a political slogan, political, Advertising slogan, commercial, religious, or other context as a repetitive expression of an idea or purpose, with the goal of persuading members of the pu ...
such as "Fifty-four Forty or Fight!" At the same time, U.S. relations with the
Centralist Republic of Mexico were rapidly deteriorating as a result of the recent U.S.
annexation of Texas. This gave rise to a concern that the U.S. might have to fight two wars on two fronts at the same time. Thus, just before the outbreak of the
Mexican–American War
The Mexican–American War (Spanish language, Spanish: ''guerra de Estados Unidos-México, guerra mexicano-estadounidense''), also known in the United States as the Mexican War, and in Mexico as the United States intervention in Mexico, ...
, Polk retreated to his earlier position, calling for the Oregon border to run along the 49th parallel.

The 1846
Oregon Treaty
The Oregon Treaty was a treaty between the United Kingdom and the United States that was signed on June 15, 1846, in Washington, D.C. The treaty brought an end to the Oregon boundary dispute by settling competing American and British claims to ...
established the border between
British North America
British North America comprised the colonial territories of the British Empire in North America from 1783 onwards. English colonisation of North America began in the 16th century in Newfoundland, then further south at Roanoke and Jamestown, ...
and the United States along the 49th parallel until the
Strait of Georgia
The Strait of Georgia () or the Georgia Strait is an arm of the Salish Sea between Vancouver Island and the extreme southwestern mainland coast of British Columbia, Canada, and the extreme northwestern mainland coast of Washington, United Stat ...
, where the marine boundary curved south to exclude
Vancouver Island
Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is in length, in width at its widest point, and in total area, while are of land. The island is the largest ...
and the
Gulf Islands
The Gulf Islands is a group of islands in the Salish Sea between Vancouver Island and the British Columbia Coast, mainland coast of British Columbia.
Etymology
The name "Gulf Islands" comes from "Gulf of Georgia", the original term used by Geor ...
from the United States. As a result, a small portion of the
Tsawwassen Peninsula,
Point Roberts, became an
exclave
An enclave is a territory that is entirely surrounded by the territory of only one other state or entity. An enclave can be an independent territory or part of a larger one. Enclaves may also exist within territorial waters. ''Enclave'' is s ...
of the United States. Vague wording in the treaty left the ownership of the
San Juan Islands
The San Juan Islands is an archipelago in the Pacific Northwest of the United States between the U.S. state of Washington and Vancouver Island, British Columbia, Canada. The San Juan Islands are part of Washington state, and form the core of ...
in doubt, as the division was to follow "through the middle of the said channel" to the
Strait of Juan de Fuca
The Strait of Juan de Fuca (officially named Juan de Fuca Strait in Canada) is a body of water about long that is the Salish Sea's main outlet to the Pacific Ocean. The Canada–United States border, international boundary between Canada and the ...
. During the so-called
Pig War, both nations agreed to a joint military occupation of the islands. Kaiser
Wilhelm I
Wilhelm I (Wilhelm Friedrich Ludwig; 22 March 1797 – 9 March 1888) was King of Prussia from 1861 and German Emperor from 1871 until his death in 1888. A member of the House of Hohenzollern, he was the first head of state of a united Germany. ...
of the
German Empire
The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
was selected as an arbitrator to end the dispute, with a three-man commission ruling in favor of the United States in 1872. There the
Haro Strait
The Haro Strait is one of the main channels connecting the Strait of Georgia to the Strait of Juan de Fuca, separating Vancouver Island and the Gulf Islands in British Columbia, Canada from the San Juan Islands of Washington (state), Washington st ...
became the borderline, rather than the British-favored
Rosario Strait
Rosario Strait is a strait in northern Washington state, separating San Juan County and Skagit and Whatcom Counties. It extends from the Strait of Juan de Fuca about north to the Strait of Georgia. The USGS defines its southern boundary as a ...
. The border established by the Oregon Treaty and finalized by the arbitration in 1872 remains the boundary between the United States and
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
in the Pacific Northwest.
Background
The Oregon Question originated in the 18th century during the early European or American exploration of the
Pacific Northwest
The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...
. Various empires began to consider the area suitable for colonial expansion, including the Americans, Russians, Spanish and British. Naval captains such as the Spanish
Juan José Pérez Hernández, British
George Vancouver
Captain (Royal Navy), Captain George Vancouver (; 22 June 1757 – 10 May 1798) was a Royal Navy officer and explorer best known for leading the Vancouver Expedition, which explored and charted North America's northwestern West Coast of the Uni ...
and American
Robert Gray gave defining regional water formations like the
Columbia River
The Columbia River (Upper Chinook language, Upper Chinook: ' or '; Sahaptin language, Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river headwater ...
and the
Puget Sound
Puget Sound ( ; ) is a complex estuary, estuarine system of interconnected Marine habitat, marine waterways and basins located on the northwest coast of the U.S. state of Washington (state), Washington. As a part of the Salish Sea, the sound ...
their modern names and charted them in the 1790s. Overland explorations were commenced by the British
Alexander Mackenzie in 1792 and later followed by the American
Lewis and Clark
Lewis may refer to:
Names
* Lewis (given name), including a list of people with the given name
* Lewis (surname), including a list of people with the surname
Music
* Lewis (musician), Canadian singer
* " Lewis (Mistreated)", a song by Radiohe ...
expedition, which reached the mouth of the
Columbia River
The Columbia River (Upper Chinook language, Upper Chinook: ' or '; Sahaptin language, Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river headwater ...
in 1805. These explorers often claimed in the name of their respective governments sovereignty over the Northwest Coast. The knowledge of fur-bearing animal populations like the
California sea lion
The California sea lion (''Zalophus californianus'') is a coastal eared seal native to western North America. It is one of six species of sea lions. Its natural habitat ranges from southeast Alaska to central Mexico, including the Gulf of Califo ...
,
North American beaver
The North American beaver (''Castor canadensis'') is one of two Extant taxon, extant beaver species, along with the Eurasian beaver (''Castor fiber''). It is native to North America and has been introduced in South America (Patagonia) and Europe ...
and the
Northern fur seal
The northern fur seal (''Callorhinus ursinus'') is an eared seal found along the north Pacific Ocean, the Bering Sea, and the Sea of Okhotsk. It is the largest member of the fur seal subfamily (Arctocephalinae) and the only living species in the ...
were used to create an economic network called the
maritime fur trade. The
fur trade
The fur trade is a worldwide industry dealing in the acquisition and sale of animal fur. Since the establishment of a world fur market in the early modern period, furs of boreal ecosystem, boreal, polar and cold temperate mammalian animals h ...
would remain the main economic interest that drew Euro-Americans to the Pacific Northwest for decades. Merchants exchanged goods for fur pelts along the coast with indigenous nations such as the
Chinookan people, the
Aleut
Aleuts ( ; (west) or (east) ) are the Indigenous people of the Aleutian Islands, which are located between the North Pacific Ocean and the Bering Sea. Both the Aleuts and the islands are politically divided between the US state of Alaska ...
s and the
Nuu-chah-nulth
The Nuu-chah-nulth ( ; ), also formerly referred to as the Nootka, Nutka, Aht, Nuuchahnulth or Tahkaht, are one of the Indigenous peoples of the Pacific Northwest Coast in Canada. The term Nuu-chah-nulth is used to describe fifteen related tri ...
.
Spanish colonization
A series of
expeditions to the Pacific Northwest were financed by the Spanish to strengthen their claims to the region. Creating a colony called
Santa Cruz de Nuca
Santa Cruz de Nuca (or Nutca) was a Spanish colonial fort and settlement and the first European colony in what is now known as British Columbia. The settlement was founded on Vancouver Island in 1789 and abandoned in 1795, with its far northerly ...
on
Vancouver Island
Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is in length, in width at its widest point, and in total area, while are of land. The island is the largest ...
, the Spanish were the first European colonisers of the Pacific Northwest outside Russian America to the north. A period of tensions with the United Kingdom, called the
Nootka Crisis
The Nootka Crisis, also known as the Spanish Armament, was an international incident and political dispute between Spain and Great Britain triggered by a series of events revolving around sovereignty claims and rights of navigation and trade. It ...
, arose after the Spanish seized a British vessel. However the three
Nootka Convention
The Nootka Sound Conventions were a series of three agreements between the Kingdom of Spain and the Kingdom of Great Britain, signed in the 1790s, which averted a war between the two countries over overlapping claims to portions of the Pacific No ...
s averted conflict, with both countries agreeing to protect their mutual access to
Friendly Cove against outside powers. While the Spanish colony was abandoned, a border delineating the northern reaches of
New Spain
New Spain, officially the Viceroyalty of New Spain ( ; Nahuatl: ''Yankwik Kaxtillan Birreiyotl''), originally the Kingdom of New Spain, was an integral territorial entity of the Spanish Empire, established by Habsburg Spain. It was one of several ...
was not included. Despite the Nootka Conventions still allowing the Spanish to establish colonies in the region, no more attempts were made as other geopolitical and domestic matters drew the attention of the authorities. With the
Adams–Onís Treaty
The Adams–Onís Treaty () of 1819, also known as the Transcontinental Treaty, the Spanish Cession, the Florida Purchase Treaty, or the Florida Treaty,Weeks, p. 168. was a treaty between the United States and Spain in 1819 that ceded Florida to ...
of 1819, the Spanish formally withdrew all formal claims to lands north of the
42° north.
Russian interest
The
Imperial Russian government established the
Russian-American Company
The Russian-American Company Under the High Patronage of His Imperial Majesty was a state-sponsored chartered company formed largely on the basis of the Shelikhov-Golikov Company, United American Company. Emperor Paul I of Russia chartered the c ...
in 1799, a monopoly among Russian subjects for fur trading operations in
Russian America
Russian(s) may refer to:
*Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries
*A citizen of Russia
*Russian language, the most widely spoken of the Slavic languages
*''The Russians'', a b ...
with the
Ukase of 1799. In part from the growing Russian activities to the north, the Spanish created the
Catholic Missions
Missionary work of the Catholic Church has often been undertaken outside the geographically defined parishes and dioceses by religious orders who have people and material resources to spare, and some of which specialized in missions. Eventually, p ...
to create colonies in
Alta California
Alta California (, ), also known as Nueva California () among other names, was a province of New Spain formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but was made a separat ...
. Plans for creating Russian colonies in what became the modern American states of
Washington
Washington most commonly refers to:
* George Washington (1732–1799), the first president of the United States
* Washington (state), a state in the Pacific Northwest of the United States
* Washington, D.C., the capital of the United States
** A ...
and
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
were formulated by
Nikolai Rezanov
Nikolai Petrovich Rezanov (, – ), a Russian nobleman and statesman, promoted the project of Russian colonization of Alaska and California to three successive Emperor of All Russia, Emperors of All Russia—Catherine the Great, Paul, and Alexa ...
. He aimed to relocate the primary colony of Russian America to the entrance of the Columbia River, but was unable to enter the river in 1806 and the plan was abandoned.
In 1808
Alexander Andreyevich Baranov
Alexander Andreyevich Baranov (; 1747 – 1819), sometimes spelled Aleksandr or Alexandr and Baranof, was a Russian trader and merchant, who worked for some time in Siberia. He was recruited by the Shelikhov-Golikov Company for trading in Rus ...
sent the ''
Nikolai'', with the captain "ordered to explore the coast south of Vancouver Island, barter with the natives for sea otter pelts, and if possible discover a site for a permanent Russian post in the Oregon Country." The ship wrecked on the
Olympic Peninsula
The Olympic Peninsula is a large peninsula in Western Washington that lies across Puget Sound from Seattle, and contains Olympic National Park. It is bounded on the west by the Pacific Ocean, the north by the Strait of Juan de Fuca, and the ...
and the surviving crew did not return to
New Archangel for two years. The failure of the vessel to find a suitable location led to the Russians to not consider much of the Northwest coast worth colonizing. Their interest in the Puget Sound and the Columbia River was diverted to Alta California, with
Fort Ross
Fort Ross (, , Kashaya: ) is a former Russian establishment on the west coast of North America in what is now Sonoma County, California. Owned and operated by the Russian-American Company, it was the hub of the southernmost Russian settlemen ...
soon established.
The
Russo-American Treaty of 1824 and the 1825
Treaty of Saint Petersburg with the British formally created the southern border of Russian America at parallel 54°40′ north. Specifically, it was agreed, in the 1824 treaty, that no American settlement would be established on the coast or adjacent island north of 54°40′, and no Russian settlement to the south (Russian
Fort Ross
Fort Ross (, , Kashaya: ) is a former Russian establishment on the west coast of North America in what is now Sonoma County, California. Owned and operated by the Russian-American Company, it was the hub of the southernmost Russian settlemen ...
was in
Alta California
Alta California (, ), also known as Nueva California () among other names, was a province of New Spain formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but was made a separat ...
, Mexico, and was outside the purview of the treaty). The treaty did not make any explicit statements about sovereignty or territorial claims. The 1825 treaty with Britain was more strongly worded and defined the boundary between Russian and
British possessions
A British possession is a country or territory other than the United Kingdom which has the British monarch as its head of state.
Overview
In common statutory usage the British possessions include British Overseas Territories, and the Commonwe ...
in North America, which ran north from 54°40′ through what is now the
Alaska Panhandle
Southeast Alaska, often abbreviated to southeast or southeastern, and sometimes called the Alaska(n) panhandle, is the southeastern portion of the U.S. state of Alaska, bordered to the east and north by the northern half of the Canadian provi ...
to the
141st meridian west, then along that line north to the Arctic Ocean.
Early Anglo-American competition
Neither the Russian nor Spanish empires held significant plans at promoting colonies along the Northwest Coast by the 1810s. The British and the Americans were the remaining two nations with citizens active in commercial operations in the region. Starting with a party of the
Montreal
Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...
-based
North West Company
The North West Company was a Fur trade in Canada, Canadian fur trading business headquartered in Montreal from 1779 to 1821. It competed with increasing success against the Hudson's Bay Company in the regions that later became Western Canada a ...
(NWC) employees led by
David Thompson in 1807, the British began land-based operations and opened trading posts throughout the region. Thompson extensively explored the Columbia River watershed. While at the junction of Columbia and
Snake
Snakes are elongated limbless reptiles of the suborder Serpentes (). Cladistically squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales much like other members of the group. Many species of snakes have s ...
Rivers, he erected a pole on July 9, 1811, with a notice stating "Know hereby that this country is claimed by Great Britain as part of its territories ..." and additionally stated the intention of the NWC to build a trading post there.
Fort Nez Percés
Fort Nez Percés (or Fort Nez Percé, with or without the acute accent), later known as (Old) Fort Walla Walla, was a fortified fur trading post on the Columbia River on the territory of modern-day Wallula, Washington. Despite being named after ...
was later established at the location in 1818. The American
Pacific Fur Company
The Pacific Fur Company (PFC) was an American fur trade venture wholly owned and funded by John Jacob Astor that functioned from 1810 to 1813. It was based in the Pacific Northwest, an area contested over the decades among the United Kingdom of G ...
(PFC) began operations in 1811 at
Fort Astoria
Fort Astoria (also named Fort George) was the primary Fur trade, fur trading post of John Jacob Astor's Pacific Fur Company (PFC). A maritime contingent of PFC staff was sent on board the ''Tonquin (1807 ship), Tonquin'', while another party tra ...
, constructed at the entrance of the Columbia River. The eruption of the
War of 1812
The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...
did not lead to a violent confrontation in the Pacific Northwest between the competing companies. Led by
Donald Mackenzie, PFC officers agreed to liquidate its assets to their NWC competitors, with an agreement signed on 23 November 1813. was ordered to capture Fort Astoria, though by the time it arrived, the post was already under NWC management. After the collapse of the PFC, American
mountain men operated in small groups in the region, typically based east of the Rocky Mountains, only to meet once a year at the annual
Rocky Mountain Rendezvous.
Joint occupation
Treaty of 1818
In 1818, diplomats of the two countries attempted to negotiate a boundary between the rival claims. The Americans suggested dividing the Pacific Northwest along the
49th parallel, which was the border between the United States and
British North America
British North America comprised the colonial territories of the British Empire in North America from 1783 onwards. English colonisation of North America began in the 16th century in Newfoundland, then further south at Roanoke and Jamestown, ...
east of the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
. The lack of accurate cartographic knowledge led American diplomats to declare the
Louisiana Purchase
The Louisiana Purchase () was the acquisition of the Louisiana (New France), territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Mississippi River#Watershed, Mississipp ...
gave them an incontestable claim to the region. British diplomats wanted a border further south along the
Columbia River
The Columbia River (Upper Chinook language, Upper Chinook: ' or '; Sahaptin language, Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river headwater ...
, so as to maintain the
North West Company
The North West Company was a Fur trade in Canada, Canadian fur trading business headquartered in Montreal from 1779 to 1821. It competed with increasing success against the Hudson's Bay Company in the regions that later became Western Canada a ...
's (later the
Hudson's Bay Company
The Hudson's Bay Company (HBC), originally the Governor and Company of Adventurers of England Trading Into Hudson’s Bay, is a Canadian holding company of department stores, and the oldest corporation in North America. It was the owner of the ...
's (HBC)) control of the lucrative
fur trade
The fur trade is a worldwide industry dealing in the acquisition and sale of animal fur. Since the establishment of a world fur market in the early modern period, furs of boreal ecosystem, boreal, polar and cold temperate mammalian animals h ...
along that river. The diplomatic teams could not agree upon mutually satisfactory terms and remained in deadlock by October.
Albert Gallatin
Abraham Alfonse Albert Gallatin (January 29, 1761 – August 12, 1849) was a Genevan-American politician, diplomat, ethnologist, and linguist. Often described as "America's Swiss Founding Father", he was a leading figure in the early years ...
, the main American negotiator, had previously instructed to have a tentative agreement by the convening of the third session of the
15th United States Congress
The 15th United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in the Old Brick Capitol in Washingto ...
, set for 16 November.
A final proposition was made to the British
plenipotentiary
A ''plenipotentiary'' (from the Latin ''plenus'' "full" and ''potens'' "powerful") is a diplomat who has full powers—authorization to sign a treaty or convention on behalf of a sovereign. When used as a noun more generally, the word can als ...
,
Frederick John Robinson, for the continuation of the 49th parallel west while leaving the United Kingdom, as Gallatin stated, "all the waters emptying in the sound called the Gulf of Georgia." This would have awarded "all the territory draining west from the
Cascade
Cascade, or Cascading may refer to:
Science and technology Science
* Air shower (physics), a cascade (particle shower) of subatomic particles and ionized nuclei
** Particle shower, a cascade of secondary particles produced as the result of a high ...
divide and north from the Columbia River divide into the gulf" and the entirety of the
Puget Sound
Puget Sound ( ; ) is a complex estuary, estuarine system of interconnected Marine habitat, marine waterways and basins located on the northwest coast of the U.S. state of Washington (state), Washington. As a part of the Salish Sea, the sound ...
along with the Straits of
Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the South Caucasus
* Georgia (U.S. state), a state in the southeastern United States
Georgia may also refer to:
People and fictional characters
* Georgia (name), a list of pe ...
and
Juan de Fuca to the United Kingdom. Robinson demurred from the proposal. However, the Anglo-American Convention of 1818, which settled most other disputes from the
War of 1812
The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...
, called for the joint occupation of the region for ten years.
Proposed partition plans
As the expiration of the Joint Occupation treaty approached, a second round of negotiations commenced in 1824. American Minister
Richard Rush
Richard Rush (August 29, 1780 – July 30, 1859) was an American lawyer, politician and diplomat who served as the 8th United States Attorney General from 1814 to 1817 and the 8th United States Secretary of the Treasury from 1825 to 1829. He serv ...
offered for the extension of agreement with an additional clause on 2 April. The 51° parallel would be a provisional border within the Pacific Northwest, with no British additional settlements to be established south of the line, nor any American settlements north of it. Despite Rush's offering to modify the temporary border to the 49° parallel, the British negotiators rejected his offer. His proposal was seen as the likely basis for the eventual division of the Pacific Northwest. The British plenipotentiaries
William Huskisson
William Huskisson (11 March 177015 September 1830) was a British statesman, financier, and Member of Parliament for several constituencies, including Liverpool.
He is commonly known as the world's first widely reported railway passenger ca ...
and
Stratford Canning on 29 June pressed instead for a permanent line along the 49° parallel west until the main branch of the Columbia River. With the British formally abandoning claims south or east of the Columbia River, the Oregon Question thence became focused on what later became Western
Washington
Washington most commonly refers to:
* George Washington (1732–1799), the first president of the United States
* Washington (state), a state in the Pacific Northwest of the United States
* Washington, D.C., the capital of the United States
** A ...
and the southern portion of Vancouver Island. Rush reacted to the British proposal as unfavorably as they had to his own offer, leaving the talks at a stalemate.
Throughout 1825,
George Canning
George Canning (; 11 April 17708 August 1827) was a British Tory statesman. He held various senior cabinet positions under numerous prime ministers, including two important terms as foreign secretary, finally becoming Prime Minister of the U ...
, the
Secretary of State for Foreign Affairs Secretary of State for Foreign Affairs may refer to:
* Secretary of State for Foreign Affairs (Spain)
*Secretary of State for Foreign Affairs (UK)
The secretary of state for foreign, commonwealth and development affairs, also known as the fore ...
, held discussions with
Governor Pelly of the HBC as to a potential settlement with the United States. Pelly felt a border along the
Snake
Snakes are elongated limbless reptiles of the suborder Serpentes (). Cladistically squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales much like other members of the group. Many species of snakes have s ...
and Columbia Rivers was advantageous for the United Kingdom and his company. Contacting American minister
Rufus King
Rufus King (March 24, 1755April 29, 1827) was an American Founding Fathers of the United States, Founding Father, lawyer, politician, and diplomat. He was a delegate from Massachusetts to the Continental Congress and the Constitutional Convent ...
in April 1826, Canning requested that a settlement be reached over the Oregon dispute. Gallatin was appointed
Ambassador to the United Kingdom and given instructions by
Secretary of State Henry Clay
Henry Clay (April 12, 1777June 29, 1852) was an American lawyer and statesman who represented Kentucky in both the United States Senate, U.S. Senate and United States House of Representatives, House of Representatives. He was the seventh Spea ...
in July 1826 to offer a division of the Pacific Northwest along the 49th parallel to the Pacific Ocean to the British. In a letter to Prime Minister
Lord Liverpool
Robert Banks Jenkinson, 2nd Earl of Liverpool (7 June 1770 – 4 December 1828) was a British Tory statesman who served as Prime Minister of the United Kingdom from 1812 to 1827. Before becoming Prime Minister he had been Foreign Secretary, ...
in 1826, Canning presented the possibilities of trade with the
Qing Empire
The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...
if a division of the Pacific Northwest was to be made with the Americans. He felt the recognition of American rights to ownership of Astoria, despite its continued use by the NWC and later HBC, was "absolutely unjustifiable". This diplomatic courtesy Canning felt weakened the territorial claims of the United Kingdom. A border along the Columbia River would give "an immense direct intercourse between China and what may be, if we resolve not yield them up, her boundless establishments on the N. W. Coast of America".
Renewal
Huskisson was appointed along with
Henry Unwin Addington to negotiate with Gallatin. Unlike his superior, Canning, Huskisson held a negative view of the HBC monopoly and found the region held in dispute with the Americans "of little consequence to the British". At the time the HBC's staff were the only continuous white occupants in the region, though their economic activities were not utilized by Huskinisson in exchanges with Gallatin. The division suggested by Pelly and Canning's 1824 offer of a Columbia River boundary was rejected. The argument used to counter these offers was the same as in 1824, that a boundary along the Columbia would deny the U.S. an easily accessible deep water port on the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
. The British negotiators to allay this attack offered a detached
Olympic Peninsula
The Olympic Peninsula is a large peninsula in Western Washington that lies across Puget Sound from Seattle, and contains Olympic National Park. It is bounded on the west by the Pacific Ocean, the north by the Strait of Juan de Fuca, and the ...
as American territory, giving access to both the Straits of Juan de Fuca and Puget Sound. This was seen as unsatisfactory by the Americans however. The diplomatic talks were continued but failed to divide the region in a satisfactory manner for both nations. The Treaty of 1818 was renewed on 7 August 1827, with a clause added by Gallatin that a one-year notice had to be given when either party intended to abrogate the agreement. After the death of Canning and the failure to find a satisfactory division of the region with the Americans, "Oregon had been almost forgotten by the
ritishpoliticians".
Significance in the United States
Regional activities
American Protestant missionaries began to arrive in the 1830s and established the
Methodist Mission
The Methodist Mission was the Methodist Episcopal Church's 19th-century conversion efforts in the Pacific Northwest. Local Indigenous cultures were introduced to western culture and Christianity. Superintendent Jason Lee (missionary), Jason Lee was ...
in the
Willamette Valley
The Willamette Valley ( ) is a valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, the ...
and the
Whitman Mission east of the
Cascades.
Ewing Young created a
saw mill
A sawmill (saw mill, saw-mill) or lumber mill is a facility where logging, logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes ...
and a
grist mill
A gristmill (also: grist mill, corn mill, flour mill, feed mill or feedmill) grinds cereal grain into flour and Wheat middlings, middlings. The term can refer to either the grinding mechanism or the building that holds it. Grist is grain that h ...
in the Willamette Valley early in the 1830s. He and several other American colonists formed the
Willamette Cattle Company in 1837 to bring over 600 head of cattle to the Willamette Valley, with about half of its shares purchased by McLoughlin. Over 700 U.S settlers arrived via the Oregon Trail in the "
Great Migration of 1843". The
Provisional Government of Oregon
The Provisional Government of Oregon was a popularly elected settler government created in the Oregon Country (1818-1846), in the Pacific Northwest region of the western portion of the continent of North America. Its formation had been advanced ...
was established in the Willamette Valley during 1843 as well. Its rule was limited to those interested Americans and former
French-Canadian
French Canadians, referred to as Canadiens mainly before the nineteenth century, are an ethnic group descended from French colonists first arriving in France's colony of Canada in 1608. The vast majority of French Canadians live in the prov ...
HBC employees in the valley.
John Floyd
The first attempts by the American Government for proactive action in colonising the Pacific Northwest began in 1820 during the 2nd session of the
16th Congress.
John Floyd, a
Representative from
Virginia
Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...
, spearheaded a report that would "authorize the occupation of the Columbia River, and to regulated trade and intercourse with the Indian tribes thereon." Additionally the bill called for cultivating commercial relations with the
Qing Empire
The Qing dynasty ( ), officially the Great Qing, was a Manchu-led Dynasties of China, imperial dynasty of China and an early modern empire in East Asia. The last imperial dynasty in Chinese history, the Qing dynasty was preceded by the ...
and the
Tokugawa shogunate
The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868.
The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil wars ...
. His interest in the distant region likely began after meeting former PFC employee
Russell Farnham. Floyd had the support of fellow Virginian Representative
Thomas Van Swearingen and Representative
Thomas Metcalfe of
Kentucky
Kentucky (, ), officially the Commonwealth of Kentucky, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the ...
. The bill was presented to both the House and to
President Monroe. In the House, Floyd's bill was defended by one member who stated that it did not "attempt a colonial settlement. The territory proposed to be occupied is already a part of the United States." Monroe inquired the opinion of
Secretary of State John Quincy Adams
John Quincy Adams (; July 11, 1767 – February 23, 1848) was the sixth president of the United States, serving from 1825 to 1829. He previously served as the eighth United States secretary of state from 1817 to 1825. During his long diploma ...
for potential revisions. Adams retorted that "The paper was a tissue of errors in fact and abortive reasoning, of invidious reflections and rude invectives. There was nothing could purify it but the fire." Read twice before the legislature, "most of the members not considering it a serious proceeding", it did not pass.
Floyd continued to authorise legislation calling for an American colony on the Pacific. His career as a Representative ended in 1829, with the Oregon Question not discussed at Congress until 1837. The northern border proposed by Floyd was at first the
53°, and later 54°40′. These bills were still met with the apathy or opposition of other Congressional members, one in particular being tabled for consideration by a vote of 100 to 61.
Missouri
Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
Senator
Thomas H. Benton became a vocal supporter of Floyd's efforts, and thought that they would "plant the germ of a powerful and independent Power beyond the Rockies".
John C. Calhoun
John Caldwell Calhoun (; March 18, 1782March 31, 1850) was an American statesman and political theorist who served as the seventh vice president of the United States from 1825 to 1832. Born in South Carolina, he adamantly defended American s ...
, then
Secretary of War
The secretary of war was a member of the U.S. president's Cabinet, beginning with George Washington's administration. A similar position, called either "Secretary at War" or "Secretary of War", had been appointed to serve the Congress of the ...
, while somewhat interested in Floyd's considered bills, gave his opinion to that the HBC was an economic threat to American commercial interests in the west.
1844 presidential election
The
1844 presidential election was a definitive turning point for the United States. Admitting the
Texas Republic by diplomatic negotiations to begin a process of
annexation of Texas into the nation was a contentious topic. At the same time, the Oregon Question "became a weapon in a struggle for domestic political power". At the
Democratic National Convention
The Democratic National Convention (DNC) is a series of presidential nominating conventions held every four years since 1832 by the United States Democratic Party. They have been administered by the Democratic National Committee since the 18 ...
, the
party platform
A political party platform (American English), party program, or party manifesto (preferential term in British and often Commonwealth English) is a formal set of principal goals which are supported by a political party or individual candidate, t ...
asserted "That our title to the whole of the Territory of Oregon is clear and unquestionable; that no portion of the same ought to be ceded to England or any other power, and that the reoccupation of Oregon and the re-annexation of Texas at the earliest practicable period are great American measures". By tying the Oregon dispute to the more controversial Texas debate, the Democrats appealed to expansionist members from both the Northern and Southern states. Enlargement in the Pacific Northwest offered a means of mollifying Northern fears of allowing Texas, another
slave state
In the United States before 1865, a slave state was a state in which slavery and the internal or domestic slave trade were legal, while a free state was one in which they were prohibited. Between 1812 and 1850, it was considered by the slave s ...
, by a counterbalance of additional free states. Democratic candidate
James K. Polk went on to win a narrow victory over
Whig candidate
Henry Clay
Henry Clay (April 12, 1777June 29, 1852) was an American lawyer and statesman who represented Kentucky in both the United States Senate, U.S. Senate and United States House of Representatives, House of Representatives. He was the seventh Spea ...
, in part because Clay had taken a stand against immediate expansion in Texas. Despite the use of the Oregon Question in the election, according to Edward Miles, the topic was not "a significant campaign issue" as "the Whigs would have been forced to discuss it".
"Fifty-four Forty or Fight!"
A popular slogan later associated with Polk and his campaign of 1844, "Fifty-four Forty or Fight!" was not actually coined during the election but appeared only by January 1846 and was promoted and driven in part by the press associated with the Democratic Party. The phrase has since become frequently misidentified as a Polk campaign slogan, even in many textbooks. ''
Bartlett's Familiar Quotations
''Bartlett's Familiar Quotations'', often simply called ''Bartlett's'', is an American reference work that is the longest-lived and most widely distributed collection of quotations. The book was first issued in 1855 and is currently in its 19th ...
'' attributes the slogan to William Allen. 54°40′ was the southern boundary of
Russian America
Russian(s) may refer to:
*Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries
*A citizen of Russia
*Russian language, the most widely spoken of the Slavic languages
*''The Russians'', a b ...
and considered the northernmost limit of the Pacific Northwest. One actual Democratic campaign slogan from the election (used in
Pennsylvania
Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...
) was the more mundane "Polk,
Dallas
Dallas () is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex, the List of Texas metropolitan areas, most populous metropolitan area in Texas and the Metropolitan statistical area, fourth-most ...
, and the
Tariff of '42".
The southernmost border of
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
remains 54°40′ since the purchase from Russia on October 18, 1867, with
British Columbia
British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
, established as the
Colony of British Columbia The Colony of British Columbia refers to one of two colonies of British North America, located on the Pacific coast of modern-day Canada:
* Colony of British Columbia (1858–1866)
* Colony of British Columbia (1866–1871)
See also
* History of ...
on August 2, 1858.
British interest
Hudson's Bay Company

The
Hudson's Bay Company
The Hudson's Bay Company (HBC), originally the Governor and Company of Adventurers of England Trading Into Hudson’s Bay, is a Canadian holding company of department stores, and the oldest corporation in North America. It was the owner of the ...
(HBC) merged with the North West Company in 1821 and assumed its various fur trading stations. The HBC held a license among British subjects to trade with the populous aboriginal peoples of the region, and its network of trading posts and routes extended southward from
New Caledonia
New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ...
, another HBC fur-trade district, into the Columbia basin (most of New Caledonia lay south of 54°40'N). The HBC's headquarters for the entire region became established at
Fort Vancouver
Fort Vancouver was a 19th-century fur trading post built in the winter of 1824–1825. It was the headquarters of the Hudson's Bay Company's Columbia Department, located in the Pacific Northwest. Named for Captain George Vancouver, the fort was ...
(modern
Vancouver, Washington
Vancouver ( ) is a city on the north bank of the Columbia River in the U.S. state of Washington (state), Washington, located in Clark County, Washington, Clark County. Founded in 1825 and incorporated in 1857, Vancouver had a population of 190, ...
) in 1824. During that year
George Simpson while discussing the company's "uncertain tenure of the Columbia" with
Governor Colville, discussed the possibility of closing operations along the river. "If the Americans settle on the mouth of the Columbia it would in my opinion be necessary to abandon the Coast
outh of the river. Simpson stated, with the company posts to "move to the Northward". At its pinnacle in the late 1830s and early 1840s, Fort Vancouver watched over 34 outposts, 24 ports, six ships, and 600 employees.
Domestic
The ''
Edinburgh Review
The ''Edinburgh Review'' is the title of four distinct intellectual and cultural magazines. The best known, longest-lasting, and most influential of the four was the third, which was published regularly from 1802 to 1929.
''Edinburgh Review'', ...
'' declared the Pacific Northwest "the last corner of the earth left free for the occupation of a civilized race. When Oregon shall be colonised, the map of the world may be considered as filled up."
Naval presence
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
ships were dispatched to the Pacific Northwest throughout the decades, to both expand cartographical knowledge and protect fur trading stations. The British established the
Pacific Station
The Pacific Station was created in 1837 as one of the geographical military formations into which the Royal Navy divided its worldwide responsibilities. The South America Station was split into the Pacific Station and the South East Coast o ...
in 1826 at
Valparaíso
Valparaíso () is a major city, Communes of Chile, commune, Port, seaport, and naval base facility in the Valparaíso Region of Chile. Valparaíso was originally named after Valparaíso de Arriba, in Castilla–La Mancha, Castile-La Mancha, Spain ...
,
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...
, increasing the strategic capabilities of their navy. A squadron was moved there and later vessels sent to the Pacific Northwest were based out of the port. was in the region during 1818. The next surveying expedition was commenced by and in 1837, with operations lasting until 1839. Dispatched from the Pacific Station to gather intelligence on the HBC posts, arrived at the Columbia River in July 1844. Chief Factor
James Douglas complained that the naval officers "had more taste for a
lark
Larks are passerine birds of the family Alaudidae. Larks have a cosmopolitan distribution with the largest number of species occurring in Africa. Only a single species, the horned lark, occurs in North America, and only Horsfield's bush lark occ ...
than a 'musty' lecture on politics or the greater national interests in question." The ''Modeste'' visited the HBC trading posts of Forts George, Vancouver, Victoria and
Simpson
Simpson may refer to:
* Simpson (name), a British surname
Organizations Schools
*Simpson College, in Indianola, Iowa
*Simpson University, in Redding, California
Businesses
*Simpson (appliance manufacturer), former manufacturer and brand of w ...
.
Political efforts during Tyler presidency
Missouri Senator
Lewis Linn tabled legislation in 1842, inspired in part by Floyd's previous efforts. Linn's bill called for the government to create land grants for men interested in settling the Pacific Northwest. The arrival of
Baron Ashburton in April 1842, sent to resolve several territorial disputes with the United States, delayed Linn's legislation. Initially focusing on the Pacific Northwest, Ashburton presented
Secretary of State Daniel Webster
Daniel Webster (January 18, 1782 – October 24, 1852) was an American lawyer and statesman who represented New Hampshire and Massachusetts in the U.S. Congress and served as the 14th and 19th United States Secretary of State, U.S. secretary o ...
the 1824 partition proposal made by Canning of a division along the Columbia River. Webster rejected the offer for the same reasons it was previously repudiated; the division would leave the United States with no suitable locations for a large Pacific port. Webster suggested that Ashburton's proposal may have been found acceptable by the Americans, if the United States could be compensated with the
Mexican owned
San Francisco Bay
San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...
. Ashburton passed on the offer to his superiors, but no further action was taken. Both diplomats became focused on settling the
Aroostook War
The Aroostook War (sometimes called the Pork and Beans WarLe Duc, Thomas (1947). The Maine Frontier and the Northeastern Boundary Controversy. ''The American Historical Review'' Vol. 53, No. 1 (Oct., 1947), pp. 30–41), or the Madawaska War, w ...
and formulated the
Webster–Ashburton Treaty
The Webster–Ashburton Treaty, signed August 9, 1842, was a treaty that resolved several border issues between the United States and the British North American colonies (the region that later became the Dominion of Canada). Negotiated in the U ...
.
At the final session of the
27th Congress on 19 December 1842, Linn presented a similar bill to colonize the Pacific Northwest, as he put it, "by the Anglo-American race, which will extend our limits from the Atlantic to the Pacific Ocean." Arguments over the bill lasted over a month, and it was eventually passed in the Senate 24–22. In opposition to Linn's bill, Calhoun famously declared that the U.S. government should pursue a policy of "wise and masterly inactivity" in Oregon, letting settlement determine the eventual boundary. Many of Calhoun's fellow
Democrats, however, soon began to advocate a more direct approach.
By early 1843, Webster returned to the Oregon Question, formalising a plan that included the 1826 British offer of the Olympic Peninsula enclave and the purchase of
Alta California
Alta California (, ), also known as Nueva California () among other names, was a province of New Spain formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but was made a separat ...
from Mexico. The increasing hostility President Tyler had with the
Whig Party led to Webster's disinterest in continuing to act as the Secretary of State and his plan was shelved. The American minister to the UK,
Edward Everett
Edward Everett (April 11, 1794 – January 15, 1865) was an American politician, Unitarian pastor, educator, diplomat, and orator from Massachusetts. Everett, as a Whig, served as U.S. representative, U.S. senator, the 15th governor of Mas ...
, was given authority to negotiate with British officials to settle the Oregon Question in October 1843. Meeting with Prime Minister
Robert Peel
Sir Robert Peel, 2nd Baronet (5 February 1788 – 2 July 1850), was a British Conservative statesman who twice was Prime Minister of the United Kingdom (1834–1835, 1841–1846), and simultaneously was Chancellor of the Exchequer (1834–183 ...
's
Foreign Secretary,
Earl of Aberdeen on 29 November, Everett presented the terms considered by President
John Tyler
John Tyler (March 29, 1790 – January 18, 1862) was the tenth president of the United States, serving from 1841 to 1845, after briefly holding office as the tenth vice president of the United States, vice president in 1841. He was elected ...
. The old offer of the 49th parallel was once more presented, along with a guarantee to free access to the Columbia River. However during President Tyler's
State of the Union
The State of the Union Address (sometimes abbreviated to SOTU) is an annual message delivered by the president of the United States to a Joint session of the United States Congress, joint session of the United States Congress near the beginning ...
address that year on 6 December, he claimed "the entire region of country lying on the Pacific and embraced within 42° and 54°40′ of north latitude". After receiving this declaration, Aberdeen began to consult with the committee and Governor Pelly, previously left out of the most recent diplomatic exchanges.
Polk presidency

In his March 1845
inaugural address, President Polk quoted from the party platform, saying that the U.S. title to Oregon was "clear and unquestionable". Tensions grew, with both sides moving to strengthen border fortifications in anticipation of war. Despite Polk's bold language, he was actually prepared to compromise, and had no real desire to go to war over Oregon. He believed that a firm stance would compel the British to accept a resolution agreeable to the United States. While meeting with Representative
James A. Black on 4 January 1846, Polk stated that "the only way to treat
John Bull
John Bull is a national personification of England, especially in political cartoons and similar graphic works. He is usually depicted as a stout, middle-aged, country-dwelling, jolly and matter-of-fact man. He originated in satirical works of ...
was to look him straight in the eye ... if Congress faultered ... John Bull would immediately become arrogant and more grasping in his demands". But Polk's position on Oregon was not mere posturing: he genuinely believed that the U.S. had a legitimate claim to the entire region. He rejected British offers to settle the dispute through arbitration, fearing that no impartial third party could be found.
Many newspaper editors in the United States clamored for Polk to claim the entire region as the Democrats had proposed in the 1844 campaign. Headlines like "The Whole of Oregon or None" by ''The Union'' editor
Thomas Ritchie appeared on 6 November 1845. In a column in the ''New York Morning News'' on December 27, 1845, editor
John L. O'Sullivan argued that the United States should claim all of Oregon "by the right of our manifest destiny to overspread and to possess the whole of the continent which Providence has given us". Soon afterwards, the term "
Manifest Destiny
Manifest destiny was the belief in the 19th century in the United States, 19th-century United States that American pioneer, American settlers were destined to expand westward across North America, and that this belief was both obvious ("''m ...
" became a standard phrase for expansionists, and a permanent part of the American lexicon. O'Sullivan's version of "Manifest Destiny" was not a call for war, but such calls were soon forthcoming.
After Polk's inauguration, British diplomats began to receive instructions influenced from HBC officials like Simpson, whose suggestions were transmitted through Pelly and then Aberdeen to the
British Ambassador Richard Pakenham. In a letter written to Calhoun in August 1844, Pakenham pressed for a border along the Columbia River. He made an offer that likely originated from Simpson: Americans could select naval bases on the portion of Vancouver Island south of the 49th parallel or along the Strait of Juan de Fuca in return. Diplomatic channels continued negotiations throughout 1844; by early 1845 Everett reported the willingness of Aberdeen to accept the 49th parallel, provided the southern portion of
Vancouver Island
Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is in length, in width at its widest point, and in total area, while are of land. The island is the largest ...
would become British territory.
In the summer of 1845, the Polk administration renewed the proposal to divide Oregon along the 49th parallel to the Pacific Ocean. U.S. Secretary of State
James Buchanan
James Buchanan Jr. ( ; April 23, 1791June 1, 1868) was the 15th president of the United States, serving from 1857 to 1861. He also served as the United States Secretary of State, secretary of state from 1845 to 1849 and represented Pennsylvan ...
on 12 July offered the British any desired ports on the portion of Vancouver Island south of this line, though navigation rights of the Columbia River were not included. Because this proposal fell short of the Tyler administration's earlier offer, Pakenham rejected the offer without first contacting London. Offended, Polk officially withdrew the proposal on August 30, 1845, and broke off negotiations. Aberdeen censured Pakenham for this diplomatic blunder, and attempted to renew the dialogue. By then, however, Polk was suspicious of British intentions, and under increasing political pressure not to compromise. He declined to reopen negotiations.
War crisis
Congressional pressure
In his
annual address to Congress on December 2, 1845, Polk recommended giving the British the required one-year notice of the termination of the joint occupation agreement. Democratic expansionists in Congress from the
Midwest
The Midwestern United States (also referred to as the Midwest, the Heartland or the American Midwest) is one of the four census regions defined by the United States Census Bureau. It occupies the northern central part of the United States. It ...
, led by Senators
Lewis Cass
Lewis Cass (October 9, 1782June 17, 1866) was a United States Army officer and politician. He represented Michigan in the United States Senate and served in the Cabinets of two U.S. Presidents, Andrew Jackson and James Buchanan. He was also the 1 ...
of
Michigan
Michigan ( ) is a peninsular U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest, Upper Midwestern United States. It shares water and land boundaries with Minnesota to the northwest, Wisconsin to the west, ...
,
Edward A. Hannegan of
Indiana
Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
, and
William Allen of
Ohio
Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...
, called for war with the United Kingdom rather than accepting anything short of all of Oregon up to
Parallel 54°40′ north
The Oregon boundary dispute or the Oregon Question was a 19th-century territorial dispute over the political division of the Pacific Northwest of North America between several nations that had competing territorial and commercial aspirations in ...
. These pronouncements were fueled by a number of factors, including traditional
distrust of the British and a belief that the U.S. had the better claim and would make better use of the land.
The debate was not strictly divided along party or sectional lines, with many who clamored for the 54°40′ border being Northerners upset at Polk's willingness to compromise on the Pacific Northwest border. Polk's uncompromising pursuit of Texas, an acquisition seen favorable for Southern slave owners, angered many advocates of 54°40′, as the President was a Southerner and a slave owner. As historian
David M. Pletcher noted, "Fifty-Four Forty or Fight" seemed to be directed at the southern aristocracy in the U.S. as much as at the United Kingdom.
Moderates like Webster warned that the U.S. could not win a war against the
British Empire
The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
, and that negotiation could still achieve U.S. territorial goals. Webster confided to
Viscount Ossington, a personal friend, on 26 February 1846, that it would be a "stupendous folly and enormous crime" for the two nations to declare war over the Pacific Northwest.
British reaction
Pacific naval forces
During the height of tensions with the United States in 1845 and 1846, there were at least five Royal Navy vessels operating in the Pacific Northwest.
The 80-gun ship-of-the-line was deployed to Valparaíso under the commander in chief, Rear Admiral Sir
George Seymour, in 1845, with orders to report on the situation in the region. , under the command of Captain John Gordon (younger brother Foreign Secretary Aberdeen), was therefore sent north that year.
Roderick Finlayson gave a tour of Vancouver Island to the visiting naval officers, where Gordon aired his negative appraisal of the Northwest region. During a deer hunt on the island, Gordon informed Finlayson that he "would not give one of the barren hills of Scotland for all he saw around him". ''America'' departed from the Strait of Juan de Fuca on October 1.
HMS Modeste entered the Columbia River and arrived at Fort Vancouver on November 30, 1845, where it remained until May 4, 1847. ''Modeste'', an 18 gun
sloop was not favorably viewed by American colonists in the Willamette Valley, who felt threatened by the large warship's presence. Relations were improved when the officers organized a
ball
A ball is a round object (usually spherical, but sometimes ovoid) with several uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used for s ...
at Vancouver on February 3, 1846, later theatrical performances by the ship's crew, including ''
Love in a Village'' and ''
The Mock Doctor'', along with
picnic
A picnic is a meal taken outdoors (Al fresco dining, ''al fresco'') as part of an excursion, especially in scenic surroundings, such as a park, lakeside, or other place affording an interesting view, or else in conjunction with a public event su ...
s.
was the first reinforcement, ordered from the Pacific Station by Rear Admiral Seymour in January 1846. Captain Duntze was to "afford Protection to Her Majesty's Subjects in Oregon and the North West Coast" and avoid any potential confrontations with American settlers. On May 5, ''Fisgard'' reached Fort Victoria, later moving to
Fort Nisqually
Fort Nisqually was an important fur trade, fur trading and farming post of the Hudson's Bay Company in the Puget Sound area, part of the Hudson's Bay Company's Columbia Department. It was located in what is now DuPont, Washington. Today it is a ...
on the 18th, where it remained until October. Sent to aid other British vessels navigate difficult channels and rivers, , a
paddle steamer
A paddle steamer is a steamship or steamboat powered by a steam engine driving paddle wheels to propel the craft through the water. In antiquity, paddle wheelers followed the development of poles, oars and sails, whereby the first uses were wh ...
, arrived at the Strait of Juan de Fuca in June. Two survey ships were dispatched from
Plymouth
Plymouth ( ) is a port city status in the United Kingdom, city and unitary authority in Devon, South West England. It is located on Devon's south coast between the rivers River Plym, Plym and River Tamar, Tamar, about southwest of Exeter and ...
in June 1845, and , for charting the coast of the Americas. The vessels reached
Cape Flattery on 24 June 1846. ''Cormorant'' towed ''Herald'' to Fort Victoria three days later. ''Herald'' and ''Pandora'' spent several months charting Puget Sound and Vancouver Island until 2 September, when the vessels sailed for Alta California. ''Fisgard'' and ''Cormorant'' both departed for Valparaíso in October. As ''Modeste'' was the only British ship in the region during 1847, the Oregon Treaty "seemed to have taken the edge off of the Royal Navy's interest in the Northwest Coast".
War plan
Due to his extensive travels throughout the western stations of the HBC, Governor Pelly instructed
George Simpson to draft a plan for the British Government if hostilities were to arise with the Americans. Finalizing the proposal on March 29, 1845, Simpson called for two areas to launch offensives. The
Red River Colony
The Red River Colony (or Selkirk Settlement), also known as Assiniboia, was a colonization project set up in 1811 by Thomas Douglas, 5th Earl of Selkirk, on of land in British North America. This land was granted to Douglas by the Hudson's Bay ...
would be the base of operations for forays into the
Great Plains
The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...
, an expansive region then only lightly colonized by Americans. A militia composed of
Métis
The Métis ( , , , ) are a mixed-race Indigenous people whose historical homelands include Canada's three Prairie Provinces extending into parts of Ontario, British Columbia, the Northwest Territories and the northwest United States. They ha ...
riflemen and neighboring
First Nations
First nations are indigenous settlers or bands.
First Nations, first nations, or first peoples may also refer to:
Indigenous groups
*List of Indigenous peoples
*First Nations in Canada, Indigenous peoples of Canada who are neither Inuit nor Mé ...
like the
Ojibwe
The Ojibwe (; Ojibwe writing systems#Ojibwe syllabics, syll.: ᐅᒋᐺ; plural: ''Ojibweg'' ᐅᒋᐺᒃ) are an Anishinaabe people whose homeland (''Ojibwewaki'' ᐅᒋᐺᐘᑭ) covers much of the Great Lakes region and the Great Plains, n ...
would be created, along with a garrison of
Regular Army
A regular army is the official army of a state or country (the official armed forces), contrasting with irregular forces, such as volunteer irregular militias, private armies, mercenaries, etc. A regular army usually has the following:
* a ...
infantry. To secure the Pacific Northwest and the Columbia River, Simpson felt
Cape Disappointment was of critical importance. A naval force of two
steamboat
A steamboat is a boat that is marine propulsion, propelled primarily by marine steam engine, steam power, typically driving propellers or Paddle steamer, paddlewheels. The term ''steamboat'' is used to refer to small steam-powered vessels worki ...
s and two
ships of the line
A ship of the line was a type of naval warship constructed during the Age of Sail from the 17th century to the mid-19th century. The ship of the line was designed for the naval tactic known as the line of battle, which involved the two column ...
would bring a detachment of
Royal Marines
The Royal Marines provide the United Kingdom's amphibious warfare, amphibious special operations capable commando force, one of the :Fighting Arms of the Royal Navy, five fighting arms of the Royal Navy, a Company (military unit), company str ...
to create a
coastal battery there. Simpson hoped to recruit a force, led by Regular Army officers, of 2,000 Métis and
indigenous peoples
There is no generally accepted definition of Indigenous peoples, although in the 21st century the focus has been on self-identification, cultural difference from other groups in a state, a special relationship with their traditional territ ...
in the region. His proposal quickly earned the interest of the British Government as he met with Prime Minister Peel and Foreign Secretary Aberdeen on April 2.
£1,000 was awarded to lay the ground work for defensive operations in the Pacific Northwest.
Lord Stanley, the
Secretary of State for War and the Colonies
The Secretary of State for War and the Colonies was a British cabinet-level position responsible for the army and the British colonies (other than India). The Secretary was supported by an Under-Secretary of State for War and the Colonies.
Hist ...
, favored the plan, declaring that the HBC had to finance military operations west of
Sault Ste. Marie Sault Ste. Marie may refer to:
People
* Sault Ste. Marie Tribe of Chippewa Indians, a Native American tribe in Michigan
Places
* Sault Ste. Marie, Ontario, Canada
** Sault Ste. Marie (federal electoral district), a Canadian federal electora ...
.
Resolution
Aberdeen had no intention of going to war over a region that was of diminishing economic value to the United Kingdom. Furthermore the United States was an important trading partner, especially with the need of American wheat in the onset of
famine in Ireland. Aberdeen and Pakenham were negotiating from a position of strength. The key was the overwhelming naval power which Britain could have brought to bear against the United States, combined with a diplomatic and political landscape that ultimately favored the British government's aim of protecting their interests robustly but without resort to armed conflict. Ultimately British politicians and naval officers recognized that any conflict over the Oregon boundary, however undesirable, would be decided, like the War of 1812, on the Eastern Seaboard of the U.S. and the Great Lakes. The Royal Navy's presence on the Atlantic seaboard was not as numerically prominent as the American forces, yet its overall superiority to the U.S. Navy was decisive upon American decision-making during the crisis, especially their decision to compromise.
Louis McLane
Louis McLane (May 28, 1786 – October 7, 1857) was an American lawyer and politician from Wilmington, Delaware, Wilmington, in New Castle County, Delaware, and Baltimore, Baltimore, Maryland. He was a veteran of the War of 1812, a member of t ...
, the American minister in the United Kingdom, reported to Buchanan on 2 February that the British were prepared "to commission immediately some thirty ships-of-the-line in addition to steamers and other vessels held in reserve". Polk's bluff had been called.
American diplomat
Edward Everett
Edward Everett (April 11, 1794 – January 15, 1865) was an American politician, Unitarian pastor, educator, diplomat, and orator from Massachusetts. Everett, as a Whig, served as U.S. representative, U.S. senator, the 15th governor of Mas ...
contacted the
Whig leader
John Russell on 28 December 1845, supporting a revision of the American offer so as to allow the British to keep the entirety of Vancouver Island. He warned Russell that influence among the Whigs could stifle the negotiations. "If you choose to rally the public opinion of England against this basis of compromise, it will not be easy for Sir R. Peel and Lord Aberdeen to agree to it." While still considering the Columbia River important for British interests, Russell assured Aberdeen of his support in settling the Oregon Question. While Everett's was influential in this political move, Russell felt it was, as Frederick Merk stated, "prudent Whig policy" to support Aberdeen in this case.
Although Polk had called on Congress in December 1845 to pass a resolution notifying the British of the termination of joint occupancy agreement, it was not until April 23, 1846 that both houses complied. The passage was delayed especially in the Senate by contentious debate. Several Southern Senators, like
William S. Archer and
John M. Berrien,
[Cong. Globe, 28th Cong., 1st Sess. 511 (1846)] were wary of military capabilities of the British Empire. Ultimately a mild resolution was approved, the text of which called on both governments to settle the matter amicably.
By a large margin, moderation had won out over calls for war. Unlike Western Democrats, most Congressmen—like Polk—did not want to fight for 54°40′. The Polk administration then made it known that the British government should offer terms to settle the dispute. Despite the cooling diplomatic relations, a repeat of the War of 1812 was not popular with either nation's government. Time was of the essence, because it was well known that the
Peel government would fall with the impending repeal of the
Corn Laws
The Corn Laws were tariffs and other trade restrictions on imported food and corn enforced in the United Kingdom between 1815 and 1846. The word ''corn'' in British English denotes all cereal grains, including wheat, oats and barley. The la ...
in the United Kingdom, and then negotiations would have to begin again with a new ministry. At a time when the European continental balance was a far more pressing problem, a costly war with a major trading partner was not popular with the British government. Aberdeen and McLane quickly worked out a compromise and sent it to the United States.
Oregon Treaty
Pakenham and Buchanan drew up a formal treaty, known as the Oregon Treaty, which was ratified by the Senate on June 18, 1846, by a vote of 41–14. The mainland border was set at the 49th parallel, the original U.S. proposal, with navigation rights on the Columbia River granted to British subjects living in the area. Senator William Allen, one of the most outspoken advocates of the 54° 40′ claim, felt betrayed by Polk and resigned his chairmanship of the
Foreign Relations Committee. The signing of the treaty ended the joint occupation with the United Kingdom, making most Oregonians south of the 49th parallel U.S. citizens.
Henry Commager appraised the factors leading to the settlement as "a combination of temporary, fortuitous, and circumstantial phenomena, extraneous to the local situation, largely outside of American control, and foreign to American influence." Canadian
Hugh Ll. Keenleyside and American Gerald S. Brown wrote a century after the treaty that
The terms of the Oregon Treaty were essentially the same ones that had been offered earlier by the Tyler administration, and thus represented a diplomatic victory for Polk. However, Polk has often been criticized for his handling of the Oregon Question. Historian Sam W. Haynes characterizes Polk's policy as "
brinkmanship" which "brought the United States perilously close to a needless and potentially disastrous conflict". David M. Pletcher notes that while Polk's bellicose stance was the by-product of internal American politics, the war crisis was "largely of his own creation" and might have been avoided "with more sophisticated diplomacy". According to Jesse Reeves, "Had
Palmerston been in Aberdeen's position at the time of Polk's 'firm' pronouncement, Polk might have lost Oregon." Aberdeen's desire for peace and good relations with the United States "are responsible for the settlement that Polk thought to gain by a firm policy. That Aberdeen was 'bluffed' by Polk is absurd."
The treaty set the mainland boundary at the 49th parallel and retained Vancouver Island as British territory, but it was ambiguously phrased about the route of the boundary through the water. The treaty provided that the marine boundary would follow "the deepest channel" out to the Strait of Juan de Fuca, which left the fate of the
San Juan Islands
The San Juan Islands is an archipelago in the Pacific Northwest of the United States between the U.S. state of Washington and Vancouver Island, British Columbia, Canada. The San Juan Islands are part of Washington state, and form the core of ...
in question. After the "
Pig War", arbitration by
Kaiser William I of the
German Empire
The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
led to the
Treaty of Washington, which awarded the United States all the islands.
Upper Canada
The Province of Upper Canada () was a Province, part of The Canadas, British Canada established in 1791 by the Kingdom of Great Britain, to govern the central third of the lands in British North America, formerly part of the Province of Queb ...
politicians and public, already angry with the Oregon Treaty, were once again upset that Britain had not looked after their interests and sought greater autonomy in international affairs.
Historical maps
The boundary between British and American territory was shown differently in maps at the time:
See also
*
Presidency of James K. Polk
*
United Kingdom–United States relations
United may refer to:
Places
* United, Pennsylvania, an unincorporated community
* United, West Virginia, an unincorporated community
Arts and entertainment Films
* ''United'' (2003 film), a Norwegian film
* ''United'' (2011 film), a BBC Two f ...
* ''
''
Citations
General and cited references
Primary sources
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Secondary sources
*
''Sir James Douglas, Chapter V The Oregon Boundary'' Robert Hamilton Coats and R. Edward Gosnell, publ. Morang, Toronto, 1908
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*
*
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* Rakestraw, Donald A. ''For Honor or Destiny: The Anglo-American Crisis over the Oregon Territory'' (Peter Lang Publishing, 1995)
*
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''A history of British Columbia'', Chapter IX "The Oregon Boundary", pp. 89–96, E.O.S. Scholefield, British Columbia Historical Association, Vancouver, British Columbia, 1913*
*
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External links
Party platform and speeches
Polk's March 1845 inaugural address in which he reasserted the "clear and unquestionable" claim
Polk's December 1845 message to Congress in which he called for the end of the joint occupation of Oregon
Political cartoons
From ''
Harper's Weekly
''Harper's Weekly, A Journal of Civilization'' was an American political magazine based in New York City. Published by Harper (publisher), Harper & Brothers from 1857 until 1916, it featured foreign and domestic news, fiction, essays on many su ...
'', 1846:
"Polk's Dream" in which the Devil, disguised as Andrew Jackson, advises Polk to fight for the 54°40′ line
"Present Presidential Position" in which the Democratic Party's "jackass" is standing on the 54°40′ line
"Ultimatum on the Oregon Question" Polk talks with Queen Victoria, while others make comments
"War! or No War!" two Irish immigrants face off over the boundary question
Other
at
About.com
Dotdash Meredith (formerly The Mining Company, About.com and Dotdash) is an American digital media company based in New York City. The company publishes online articles and videos about various subjects across categories including health, hom ...
, an example of a reference that mistakenly describes the phrase as an 1844 campaign slogan
''54-40 or Fight''shows the
quilt block named after the slogan. In this time period, women frequently used quilts to express their political views.
{{DEFAULTSORT:Oregon Boundary Dispute
1840s in the United Kingdom
1840s in the United States
19th century in international relations
British colonization of the Americas
Canada–United States border disputes
History of the Pacific Northwest
History of United States expansionism
National questions
Oregon Country
Pre-Confederation British Columbia
Pre-statehood history of Idaho
Pre-statehood history of Oregon
Pre-statehood history of Wyoming
Presidency of James K. Polk
Resistance to the British Empire
United Kingdom–United States relations