Timeline of United States history (1900–1929)
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This section of the Timeline of United States history concern events from 1900 to 1929.


1900s


Presidency of Theodore Roosevelt

*1901 –
President William McKinley William McKinley (January 29, 1843September 14, 1901) was the 25th president of the United States, serving from 1897 until his assassination in 1901. As a politician he led a realignment that made his Republican Party largely dominant in ...
assassinated, Vice President Roosevelt becomes the 26th President *1901 –
U.S. Steel United States Steel Corporation, more commonly known as U.S. Steel, is an American integrated steel producer headquartered in Pittsburgh, Pittsburgh, Pennsylvania, with production operations primarily in the United States of America and in severa ...
founded by
John Pierpont Morgan John Pierpont Morgan Sr. (April 17, 1837 – March 31, 1913) was an American financier and investment banker who dominated corporate finance on Wall Street throughout the Gilded Age. As the head of the banking firm that ultimately became kno ...
*1901 –
Hay–Pauncefote Treaty The Hay–Pauncefote Treaty is a treaty signed by the United States and Great Britain on 18 November 1901, as a legal preliminary to the U.S. building of the Panama Canal. It nullified the Clayton–Bulwer Treaty of 1850 and gave the United States ...
*1901 -
Louis Armstrong Louis Daniel Armstrong (August 4, 1901 – July 6, 1971), nicknamed "Satchmo", "Satch", and "Pops", was an American trumpeter and vocalist. He was among the most influential figures in jazz. His career spanned five decades and several era ...
born *1902 –
Drago Doctrine The Drago Doctrine was announced in 1902 by Argentine Minister of Foreign Affairs Luis María Drago in a diplomatic note to the United States. Perceiving a conflict between the Monroe Doctrine and the influence of European imperial powers, and rai ...
*1902 – First Rose Bowl game played *1902 –
Newlands Reclamation Act The Reclamation Act (also known as the Lowlands Reclamation Act or National Reclamation Act) of 1902 () is a United States federal law that funded irrigation projects for the arid lands of 20 states in the American West. The act at first covere ...
*1903 – '' Great Train Robbery'' movie opens *1903 – Harley-Davidson Motor Company created *1903 – Ford Motor Company formed *1903 – First World Series *1903 –
Elkins Act The Elkins Act is a 1903 United States federal law that amended the Interstate Commerce Act of 1887. The Act authorized the Interstate Commerce Commission (ICC) to impose heavy fines on railroads that offered rebates, and upon the shippers that ...
*1903 – Big stick ideology *1903 –
Hay–Bunau-Varilla Treaty The Hay–Bunau-Varilla Treaty ( es, Tratado Hay-Bunau Varilla) was a treaty signed on November 18, 1903, by the United States and Panama, which established the Panama Canal Zone and the subsequent construction of the Panama Canal. It was named a ...
*1903 – Hay–Herrán Treaty *1903 – United States Department of Commerce and Labor created *1903 – The Wright brothers make their first powered flight in the '' Wright Flyer'' at Kitty Hawk, North Carolina *1904 – Roosevelt Corollary to Monroe Doctrine *1904 – Panama Canal Zone acquired *1904 –
Louisiana Purchase Exposition The Louisiana Purchase Exposition, informally known as the St. Louis World's Fair, was an World's fair, international exposition held in St. Louis, Missouri, United States, from April 30 to December 1, 1904. Local, state, and federal funds tota ...
, St. Louis *1904 –
U.S. presidential election The election of the president and the vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the fifty U.S. states or in Washington, D.C., cast ballots not direc ...
: Theodore Roosevelt elected president for full term; Charles W. Fairbanks elected vice president *1905 – President Roosevelt begins full term, Charles W. Fairbanks becomes Vice President *1905 – Niagara Falls conference *1905 – Industrial Workers of the World *1905 – Albert Einstein publishes his theory of relativity *1906 – Susan B. Anthony dies *1906 –
Algeciras Conference The Algeciras Conference of 1906 took place in Algeciras, Spain, and lasted from 16 January to 7 April. The purpose of the conference was to find a solution to the First Moroccan Crisis of 1905 between France and Germany, which arose as Germany ...
*1906 – Pure Food and Drug Act and Federal Meat Inspection Act *1906 –
Hepburn Act The Hepburn Act is a 1906 United States federal law that expanded the jurisdiction of the Interstate Commerce Commission (ICC) and gave it the power to set maximum railroad rates. This led to the discontinuation of free passes to loyal shippers. ...
*1906 – Theodore Roosevelt negotiates
Treaty of Portsmouth A treaty is a formal, legally binding written agreement between actors in international law. It is usually made by and between sovereign states, but can include international organizations, individuals, business entities, and other legal perso ...
, receives Nobel Peace Prize *1906 – San Francisco earthquake *1907 –
Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...
becomes a state *1907 –
Gentlemen's Agreement A gentlemen's agreement, or gentleman's agreement, is an informal and legally non-binding agreement between two or more parties. It is typically oral, but it may be written or simply understood as part of an unspoken agreement by convention or th ...
*1907 – Coal mine explodes in Monongah, West Virginia, killing at least 361. Worst industrial accident in American history. *1908 –
Ford Model T The Ford Model T is an automobile that was produced by Ford Motor Company from October 1, 1908, to May 26, 1927. It is generally regarded as the first affordable automobile, which made car travel available to middle-class Americans. The relati ...
appears on the market *1908 –
Root–Takahira Agreement The was a major 1908 agreement between the United States and the Empire of Japan that was negotiated between United States Secretary of State Elihu Root and Japanese Ambassador to the United States Takahira Kogorō. It was a statement of longstan ...
*1908 –
Federal Bureau of Investigation The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, t ...
established *1908 – Aldrich–Vreeland Act *1908 –
U.S. presidential election The election of the president and the vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the fifty U.S. states or in Washington, D.C., cast ballots not direc ...
: William Howard Taft elected president;
James S. Sherman James Schoolcraft Sherman (October 24, 1855 – October 30, 1912) was an American politician who was a United States representative from New York from 1887 to 1891 and 1893 to 1909, and the 27th vice president of the United States under President ...
vice president. William Jennings Bryan loses for the third and final time. *1909 – The
U.S. penny The cent, the United States one-cent coin (symbol: Cent_(currency)#Symbol, ¢), often called the "penny", is a unit of currency equaling one one-hundredth of a United States dollar. It has been the lowest face-value physical unit of U.S. currenc ...
is changed to the Abraham Lincoln design


Presidency of William Howard Taft

*1909 – William Howard Taft becomes the 27th President, James S. Sherman becomes Vice President *1909 –
Robert Peary Robert Edwin Peary Sr. (; May 6, 1856 – February 20, 1920) was an American explorer and officer in the United States Navy who made several expeditions to the Arctic in the late 19th and early 20th centuries. He is best known for, in Apri ...
claims to have reached the North Pole *1909 –
NAACP The National Association for the Advancement of Colored People (NAACP) is a civil rights organization in the United States, formed in 1909 as an interracial endeavor to advance justice for African Americans by a group including W. E.&nb ...
founded by
W. E. B. Du Bois William Edward Burghardt Du Bois ( ; February 23, 1868 – August 27, 1963) was an American-Ghanaian sociologist, socialist, historian, and Pan-Africanist civil rights activist. Born in Great Barrington, Massachusetts, Du Bois grew up in ...
*1909 – Payne–Aldrich Tariff Act *1909 – Taft implements dollar diplomacy *1909 – Pinchot–Ballinger controversy


1910s

*1910 -
Jacques Cousteau Jacques-Yves Cousteau, (, also , ; 11 June 191025 June 1997) was a French naval officer, oceanographer, filmmaker and author. He co-invented the first successful Aqua-Lung, open-circuit SCUBA (self-contained underwater breathing apparatus). T ...
is born *1910 –
Mann–Elkins Act The Mann–Elkins Act, also called the Railway Rate Act of 1910, was a United States federal law that strengthened the authority of the Interstate Commerce Commission (ICC) over railroad rates. The law also expanded the ICC's jurisdiction to inclu ...
*1910 – Mann Act *1911 –
Supreme Court A supreme court is the highest court within the hierarchy of courts in most legal jurisdictions. Other descriptions for such courts include court of last resort, apex court, and high (or final) court of appeal. Broadly speaking, the decisions of ...
breaks up
Standard Oil Standard Oil Company, Inc., was an American oil production, transportation, refining, and marketing company that operated from 1870 to 1911. At its height, Standard Oil was the largest petroleum company in the world, and its success made its co-f ...
*1911 – Triangle Shirtwaist Factory fire *1911 – First Indianapolis 500 is staged; Ray Harroun is the first winner *1912 – RMS '' Titanic'' sinks *1912 – New Mexico and Arizona become states *1912 –
Girl Scouts of the USA Girl Scouts of the United States of America (GSUSA), commonly referred to as simply Girl Scouts, is a youth organization for girls in the United States and American girls living abroad. Founded by Juliette Gordon Low in 1912, it was organized a ...
was started by Juliette Gordon Low *1912 – Theodore Roosevelt shot, but not killed, while campaigning for the presidency *1912 – Vice President Sherman dies *1912 –
U.S. presidential election The election of the president and the vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the fifty U.S. states or in Washington, D.C., cast ballots not direc ...
: Woodrow Wilson elected president, Thomas R. Marshall, vice president. Roosevelt becomes the only third party candidate to come in second for well over a century.


Presidency of Woodrow Wilson

*1913 – Wilson becomes the 28th President and Marshall, Vice President *1913 –
Woman Suffrage Procession The Woman Suffrage Procession on 3 March 1913 was the first suffragist parade in Washington, D.C. It was also the first large, organized march on Washington for political purposes. The procession was organized by the suffragists Alice Paul and L ...
, a large woman suffrage parade in Washington D.C., is organized by
Alice Paul Alice Stokes Paul (January 11, 1885 – July 9, 1977) was an American Quaker, suffragist, feminist, and women's rights activist, and one of the main leaders and strategists of the campaign for the Nineteenth Amendment to the U.S. Constitution, ...
and held on the eve of Wilson's inaugural *1913 – 16th Amendment, establishing an income tax *1913 – End of the
Philippine–American War The Philippine–American War or Filipino–American War ( es, Guerra filipina-estadounidense, tl, Digmaang Pilipino–Amerikano), previously referred to as the Philippine Insurrection or the Tagalog Insurgency by the United States, was an arm ...
*1913 – The Armory Show opens in New York City introducing
Modern art Modern art includes artistic work produced during the period extending roughly from the 1860s to the 1970s, and denotes the styles and philosophies of the art produced during that era. The term is usually associated with art in which the tradi ...
both American and European to the American public. *1913 – 17th Amendment, establishing the direct election of U.S. Senators. *1913 –
Underwood Tariff The Revenue Act of 1913, also known as the Underwood Tariff or the Underwood-Simmons Act (ch. 16, ), re-established a federal income tax in the United States and substantially lowered tariff rates. The act was sponsored by Representative Oscar Un ...
*1913 – Henry Ford develops the modern assembly line *1914 – Mother's Day established as a national holiday *1914 –
Federal Trade Commission The Federal Trade Commission (FTC) is an independent agency of the United States government whose principal mission is the enforcement of civil (non-criminal) antitrust law and the promotion of consumer protection. The FTC shares jurisdiction ov ...
created *1914 – Clayton Antitrust Act *1914 –
ABC Powers The ABC countries, or ABC powers, are the South American countries of Argentina, Brazil, and Chile, seen as the three most powerful, influential and wealthiest countries in South America. The term was mostly used in the first half of the 20t ...
*1914 – World War I begins when Austria–Hungary declares war on Serbia *1915 – '' The Birth of a Nation'' opens *1915 – RMS ''Lusitania'' sunk *1915 – First transcontinental telephone is hooked up *1916 – the U.S. acquires Virgin Islands *1916 – Jeannette Rankin first woman elected to U.S. congress *1916 –
Louis Brandeis Louis Dembitz Brandeis (; November 13, 1856 – October 5, 1941) was an American lawyer and associate justice on the Supreme Court of the United States from 1916 to 1939. Starting in 1890, he helped develop the "right to privacy" concept ...
appointed to
Supreme Court A supreme court is the highest court within the hierarchy of courts in most legal jurisdictions. Other descriptions for such courts include court of last resort, apex court, and high (or final) court of appeal. Broadly speaking, the decisions of ...
*1916 – Adamson Act *1916 –
Federal Farm Loan Act The Federal Farm Loan Act of 1916 () was a United States federal law aimed at increasing credit to rural family farmers. It did so by creating a federal farm loan board, twelve regional farm loan banks and tens of farm loan associations. The act ...
*1916 – Jones Act *1916 –
1916 United States presidential election The 1916 United States presidential election was the 33rd quadrennial presidential election, held on Tuesday, November 7, 1916. Incumbent Democratic President Woodrow Wilson narrowly defeated former Associate Justice of the Supreme Court Charles ...
:
Wilson Wilson may refer to: People * Wilson (name) ** List of people with given name Wilson ** List of people with surname Wilson * Wilson (footballer, 1927–1998), Brazilian manager and defender * Wilson (footballer, born 1984), full name Wilson Ro ...
and Marshall reelected by a mere 3,773 votes in California *1916 – Germany agrees to restrict
submarine warfare Submarine warfare is one of the four divisions of underwater warfare, the others being anti-submarine warfare, mine warfare and mine countermeasures. Submarine warfare consists primarily of diesel and nuclear submarines using torpedoes, missi ...
*1916 – The Great Migration begins *1917 – Zimmermann Telegram *1917 – President Wilson and Vice President Marshall begin second terms *1917 – U.S. enters World War I *1917 –
Espionage and Sedition Acts The Espionage Act of 1917 is a United States federal law enacted on June 15, 1917, shortly after the United States entered World War I. It has been amended numerous times over the years. It was originally found in Title 50 of the U.S. Code (War ...
*1917 –
Lansing–Ishii Agreement The was a diplomatic note signed in Washington between the United States and the Empire of Japan on 2 November 1917 over their disputes with regards to China. Both parties agreed to respect the independence and territorial integrity of China and ...
*1917 – National Hockey League formed *1917 –
U.S. Virgin Islands The United States Virgin Islands,. Also called the ''American Virgin Islands'' and the ''U.S. Virgin Islands''. officially the Virgin Islands of the United States, are a group of Caribbean islands and an unincorporated and organized territory ...
purchased from Denmark *1917 – Temperance movement leads to prohibition laws in 29 states *1917–1919 – Silent Sentinels hold a vigil outside the White House gates in favor of women's suffrage, a nearly two–and–a–half year demonstration organized by
Alice Paul Alice Stokes Paul (January 11, 1885 – July 9, 1977) was an American Quaker, suffragist, feminist, and women's rights activist, and one of the main leaders and strategists of the campaign for the Nineteenth Amendment to the U.S. Constitution, ...
and the National Woman's Party *1917–1920 – First Red Scare, marked by a widespread fear of Bolshevism and anarchism *1918 – President Wilson's Fourteen Points, which assures citizens that the Great War was being fought for a moral cause and postwar peace in Europe *1918 – Republicans win back Congress in the Midterm elections. *1918 – Armistice agreement ends World War I *1918 – Spanish flu flu pandemic begins *1918 – Daylight saving time is first adopted *1919 – Treaty of Versailles agreed to by victorious powers. *1919 – President Wilson has a massive stroke. First Lady Edith Wilson takes over in a "silent coup". *1919 – United States Senate rejects Treaty of Versailles and League of Nations *1919 – 18th Amendment, establishing Prohibition *1919 – Black Sox Scandal during that year's World Series, with the fallout lasting for decades *1919 – Sherwood Anderson publishes ''
Winesburg, Ohio ''Winesburg, Ohio'' (full title: ''Winesburg, Ohio: A Group of Tales of Ohio Small-Town Life'') is a 1919 short story cycle by the American author Sherwood Anderson. The work is structured around the life of protagonist George Willard, from the ...
'' *1919 –
Palmer Raids The Palmer Raids were a series of raids conducted in November 1919 and January 1920 by the United States Department of Justice under the administration of President Woodrow Wilson to capture and arrest suspected socialists, especially anarchists ...


1920s

*1920 – 19th Amendment, grants women the right to vote *1920 – The Great Steel Strike ends *1920 – Sacco and Vanzetti arrested *1920 – First radio broadcasts, by KDKA in Pittsburgh and WWJ in Detroit *1920 – Volstead Act *1920 – Esch–Cummins Act *1920 – Economy collapses. The Depression of 1920–21 begins. *1920 – National Football League is formed *1920 –
U.S. presidential election, 1920 The 1920 United States presidential election was the 34th quadrennial United States presidential election, presidential election, held on Tuesday, November 2, 1920. In the first election held after the end of World War I and the first election ...
: Warren G. Harding elected president, and
Calvin Coolidge Calvin Coolidge (born John Calvin Coolidge Jr.; ; July 4, 1872January 5, 1933) was the 30th president of the United States from 1923 to 1929. Born in Vermont, Coolidge was a History of the Republican Party (United States), Republican lawyer ...
vice president.


Presidency of Warren G. Harding

*1921 – Harding becomes the 29th President and Coolidge Vice President *1921 – Washington Disarmament Conference of 1921 *1921 – Emergency Quota Act *1921 - Tulsa race massacre *1921 – After refusing to sign the Treaty of Versailles and join the League of Nations, the U.S. Senate signed separate treaties with Germany, Austria, and Hungary. *1922 – Fordney–McCumber Tariff *1922 –
Lincoln Memorial The Lincoln Memorial is a U.S. national memorial built to honor the 16th president of the United States, Abraham Lincoln. It is on the western end of the National Mall in Washington, D.C., across from the Washington Monument, and is in the ...
is dedicated *1922 – The Nine Power Treaty *The Early 1920s –
Hollywood Hollywood usually refers to: * Hollywood, Los Angeles, a neighborhood in California * Hollywood, a metonym for the cinema of the United States Hollywood may also refer to: Places United States * Hollywood District (disambiguation) * Hollywood, ...
becomes the center of the movie industry. *1923 – President Harding dies; Vice President Coolidge becomes the 30th President *1923 – Teapot Dome scandal *1923 – The Cotton Club opens in Harlem *1923 – Yankee Stadium was built *1924 – Immigration Act Basic Law *1924 – Indian Citizenship Act *1924 – J. Edgar Hoover is appointed director of the
Bureau of Investigation The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, t ...
— the predecessor to the FBI.,


Presidency of Calvin Coolidge

*1924 –
U.S. presidential election, 1924 The 1924 United States presidential election was the 35th quadrennial United States presidential election, presidential election, held on Tuesday, November 4, 1924. In a three-way contest, incumbent Republican Party (United States), Republican P ...
:
Calvin Coolidge Calvin Coolidge (born John Calvin Coolidge Jr.; ; July 4, 1872January 5, 1933) was the 30th president of the United States from 1923 to 1929. Born in Vermont, Coolidge was a History of the Republican Party (United States), Republican lawyer ...
elected president for a full term, Charles G. Dawes elected vice president *1924 – The Dawes Plan *1925 – President Coolidge begins full term, Charles G. Dawes becomes Vice President *1925 – Scopes Trial, whose outcome found that the teaching of evolution in the classroom "does not violate church and state or state religion laws but instead, merely prohibits the teaching of evolution on the grounds of intellectual disagreement" *1925 –
Nellie Tayloe Ross Nellie Davis Tayloe Ross (November 29, 1876 – December 19, 1977) was an American educator and politician who served as the 14th governor of Wyoming from 1925 to 1927, and as the 28th and first female director of the United States Mint from 193 ...
elected governor of Wyoming *1925 – WSM broadcasts the
Grand Ole Opry The ''Grand Ole Opry'' is a weekly American country music stage concert in Nashville, Tennessee, founded on November 28, 1925, by George D. Hay as a one-hour radio "barn dance" on WSM. Currently owned and operated by Opry Entertainment (a divis ...
for the first time. *1925 – Countee Cullen published a book of poems called '' Color''. *1925 – F. Scott Fitzgerald publishes '' The Great Gatsby'' *1926 – NBC founded as the U.S.'s first major broadcast network *1926 – United States intervenes in Nicaragua *1926 –
Opportunity Magazine Opportunity may refer to: Places * Opportunity, Montana, an unincorporated community, United States * Opportunity, Nebraska, an unincorporated community, United States * Opportunity, Washington, a former census-designated place, United States * 39 ...
publishes
Langston Hughes James Mercer Langston Hughes (February 1, 1901 – May 22, 1967) was an American poet, social activist, novelist, playwright, and columnist from Joplin, Missouri. One of the earliest innovators of the literary art form called jazz poetry, Hug ...
' ''
The Weary Blues "The Weary Blues" is a poem by American poet Langston Hughes. Written in 1925, "The Weary Blues" was first published in the Urban League magazine ''Opportunity''. It was awarded the magazine's prize for best poem of the year. The poem was includ ...
'' *1926 – '' The Sun Also Rises'' by Ernest Hemingway is published. *1927 – Sacco and Vanzetti executed, seven years after they were convicted of murdering two men during an armed robbery in Massachusetts *1927 – Charles Lindbergh makes first trans–Atlantic flight *1927 – '' The Jazz Singer'', the first motion picture with sound, is released *1927 – U.S. citizenship granted to inhabitants of
U.S. Virgin Islands The United States Virgin Islands,. Also called the ''American Virgin Islands'' and the ''U.S. Virgin Islands''. officially the Virgin Islands of the United States, are a group of Caribbean islands and an unincorporated and organized territory ...
*1927 – Columbia Broadcasting System (later called CBS) was founded, and becomes the second national radio network in the U.S. *1927 – The 15,000,000th Model T rolled off the Assembly Line at Ford Motor Company. *1927 – Babe Ruth hits a record 60 home runs in a single season *1928 – Disney's '' Steamboat Willie'' opens, the first animated picture to feature
Mickey Mouse Mickey Mouse is an animated cartoon Character (arts), character co-created in 1928 by Walt Disney and Ub Iwerks. The longtime mascot of The Walt Disney Company, Mickey is an Anthropomorphism, anthropomorphic mouse who typically wears red sho ...
*1928 –
Kellogg–Briand Pact The Kellogg–Briand Pact or Pact of Paris – officially the General Treaty for Renunciation of War as an Instrument of National Policy – is a 1928 international agreement on peace in which signatory states promised not to use war to ...
*1928 –
Amelia Earhart Amelia Mary Earhart ( , born July 24, 1897; disappeared July 2, 1937; declared dead January 5, 1939) was an American aviation pioneer and writer. Earhart was the first female aviator to fly solo across the Atlantic Ocean. She set many oth ...
becomes the first woman to fly across the Atlantic Ocean. *1928 - First color motion pictures are demonstrated by George Eastman


Presidency of Herbert C. Hoover

*1928 –
U.S. presidential election, 1928 The 1928 United States presidential election was the 36th quadrennial presidential election, held on Tuesday, November 6, 1928. Republican Secretary of Commerce Herbert Hoover defeated the Democratic nominee, Governor Al Smith of New York. After ...
:
Herbert C. Hoover Herbert Clark Hoover (August 10, 1874 – October 20, 1964) was an American politician who served as the 31st president of the United States from 1929 to 1933 and a member of the Republican Party, holding office during the onset of the Gre ...
elected president and Charles Curtis vice president *1929 – St. Valentine's Day Massacre *1929 - Wall Street Crash of 1929 occurs, resulting in the Great Depression.


See also

*
History of the United States (1865–1918) The history of the United States from 1865 until 1918 covers the Reconstruction Era, the Gilded Age, and the Progressive Era, and includes the rise of industrialization and the resulting surge of immigration in the United States. This article foc ...
*
History of the United States (1918–1945) In the history of the United States, the period from 1918 through 1945 covers the post-World War I era, the Great Depression, and World War II. After World War I, the U.S. rejected the Treaty of Versailles and did not join the League of Nations. ...


References


External links


H-SHGAPE discussion forum for people studying the Gilded Age and Progressive Era
{{DEFAULTSORT:Timeline of United States History (1900-1929)
1900 As of March 1 ( O.S. February 17), when the Julian calendar acknowledged a leap day and the Gregorian calendar did not, the Julian calendar fell one day further behind, bringing the difference to 13 days until February 28 ( O.S. February 15), 2 ...
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