The year 1761 in

science Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for ...

and

technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, science, ...

involved some significant events, listed below.

Astronomy

* June 6 – The first

transit of Venus frameless, upright=0.5 A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and a superior planet, becoming visible against (and hence obscuring a small portion of) the solar disk. During a trans ...

since

Edmond Halley Edmond (or Edmund) Halley (; – ) was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720. From an observatory he constructed on Saint Helena in 1676–77, H ...

suggested that its observation could determine the distance from the

Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...

to the

Sun The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radi ...

Joseph-Nicolas Delisle Joseph-Nicolas Delisle (; 4 April 1688 – 11 September 1768) was a French astronomer and cartographer. Life Joseph was born in Paris, one of the 11 sons of Claude Delisle (1644–1720). Like many of his brothers, among them Guillaume Delisle, ...

set up a 62-station network for observing the transit. Those taking part included: **

Nathaniel Bliss Nathaniel Bliss (28 November 1700 – 2 September 1764) was an English astronomer of the 18th century, serving as Britain's fourth Astronomer Royal between 1762 and 1764. Life Nathaniel Bliss was born in the Cotswolds village of Bisley i ...

at the

Royal Greenwich Observatory The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in G ...

near London ** César Cassini de Thury in

Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...

Jean-Baptiste Chappe d'Auteroche Jean-Baptiste Chappe d'Auteroche (23 March 1722 – 1 August 1769) was a French astronomer, best known for his observations of the transits of Venus in 1761 and 1769. Early life Little is known of Chappe's early life. He was born into a distingu ...

Tobolsk Tobolsk (russian: Тобо́льск) is a town in Tyumen Oblast, Russia, located at the confluence of the Tobol and Irtysh rivers. Founded in 1590, Tobolsk is the second-oldest Russian settlement east of the Ural Mountains in Asian Russia, and i ...

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of ...

Jeremiah Dixon Jeremiah Dixon FRS (27 July 1733 – 22 January 1779) was an English surveyor and astronomer who is best known for his work with Charles Mason, from 1763 to 1767, in determining what was later called the Mason–Dixon line. Early life and ...

and

Charles Mason Charles Mason (April 1728 Cape Town Cape Town ( af, Kaapstad; , xh, iKapa) is one of South Africa's three capital cities, serving as the seat of the Parliament of South Africa. It is the legislative capital of the country, the oldest city in the country, and the second largest ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

(they had originally planned to go to Bengcoolen,

Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...

) **

Maximilian Hell Maximilian Hell ( hu, Hell Miksa) (born Rudolf Maximilian Höll; May 15, 1720 – April 14, 1792) was an astronomer and an ordained Jesuit priest from the Kingdom of Hungary. Biography Born as Rudolf Maximilian Höll in Selmecbánya, Hont Co ...

Vardø ( fi, Vuoreija, fkv, Vuorea, se, Várggát) is a municipality in Troms og Finnmark county in the extreme northeastern part of Norway. Vardø is the easternmost town in Norway, more to the east than Saint Petersburg or Istanbul. The administra ...

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

Joseph de Lalande Joseph is a common male given name, derived from the Hebrew Yosef (יוֹסֵף). "Joseph" is used, along with "Josef", mostly in English, French and partially German languages. This spelling is also found as a variant in the languages of the mo ...

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

Tobias Mayer Tobias Mayer (17 February 172320 February 1762) was a German astronomer famous for his studies of the Moon. He was born at Marbach, in Württemberg, and brought up at Esslingen in poor circumstances. A self-taught mathematician, he earned a l ...

Göttingen Göttingen (, , ; nds, Chöttingen) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. At the end of 2019, t ...

Nevil Maskelyne Nevil Maskelyne (; 6 October 1732 – 9 February 1811) was the fifth British Astronomer Royal. He held the office from 1765 to 1811. He was the first person to scientifically measure the mass of the planet Earth. He created the ''British Nau ...

Saint Helena Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constitu ...

Alexandre Pingré Alexandre may refer to: * Alexandre (given name) * Alexandre (surname) * Alexandre (film) See also * Alexander Alexander is a male given name. The most prominent bearer of the name is Alexander the Great, the king of the Ancient Greek kingdom o ...

Rodrigues Island Rodrigues (french: Île Rodrigues, link=yes ; Creole: ) is a autonomous outer island of the Republic of Mauritius in the Indian Ocean, about east of Mauritius. It is part of the Mascarene Islands, which include Mauritius and Réunion. Rodr ...

(where he makes the last record of the

Rodrigues parrot The Rodrigues parrot or Leguat's parrot (''Necropsittacus rodricanus'') is an extinct species of parrot that was endemic to the Mascarene island of Rodrigues in the Indian Ocean, east of Madagascar. It is unclear to which other species it is ...

) **

John Winthrop John Winthrop (January 12, 1587/88 – March 26, 1649) was an English Puritan lawyer and one of the leading figures in founding the Massachusetts Bay Colony, the second major settlement in New England following Plymouth Colony. Winthrop led t ...

in St. John's,

Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

Mikhail Lomonosov Mikhail Vasilyevich Lomonosov (; russian: Михаил (Михайло) Васильевич Ломоносов, p=mʲɪxɐˈil vɐˈsʲilʲjɪvʲɪtɕ , a=Ru-Mikhail Vasilyevich Lomonosov.ogg; – ) was a Russian Empire, Russian polymath, s ...

, who finds the first evidence that the planet has an

atmosphere An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A s ...

Guillaume Le Gentil Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galaisière (, 12 September 1725 – 22 October 1792) was a French astronomer who discovered several nebulae and was appointed to the Royal Academy of Sciences. He made unsuccessful attemp ...

, who had hoped to observe from

Pondicherry Pondicherry (), now known as Puducherry ( French: Pondichéry ʊdʊˈtʃɛɹi(listen), on-dicherry, is the capital and the most populous city of the Union Territory of Puducherry in India. The city is in the Puducherry district on the sout ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

, is prevented from doing so due to the

Seven Years' War The Seven Years' War (1756–1763) was a global conflict that involved most of the European Great Powers, and was fought primarily in Europe, the Americas, and Asia-Pacific. Other concurrent conflicts include the French and Indian War (1754� ...

and

Ruđer Bošković Roger Joseph Boscovich ( hr, Ruđer Josip Bošković; ; it, Ruggiero Giuseppe Boscovich; la, Rogerius (Iosephus) Boscovicius; sr, Руђер Јосип Бошковић; 18 May 1711 – 13 February 1787) was a physicist, astronomer, ...

arrives late in

Constantinople la, Constantinopolis ota, قسطنطينيه , alternate_name = Byzantion (earlier Greek name), Nova Roma ("New Rome"), Miklagard/Miklagarth (Old Norse), Tsargrad ( Slavic), Qustantiniya (Arabic), Basileuousa ("Queen of Cities"), Megalopolis (" ...

Botany

* Louis Gérard publishes ''Flora Gallo-Provincialis'', the first

flora Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. E ...

arranged according to natural classification.

Chemistry

Johan Gottschalk Wallerius Johan Gottschalk Wallerius (11 July 1709 – 16 November 1785) was a Swedish chemist and mineralogist. Biography Wallerius was born at Stora Mellösa in Närke (now Örebro County), Sweden. He was a son of provost Erik Nilsson Wallerius and hi ...

publishes his pioneering work in

agricultural chemistry Agricultural chemistry is the study of chemistry, especially organic chemistry and biochemistry, as they relate to agriculture—agricultural production, the processing of raw products into foods and beverages, and environmental monitoring and re ...

, ''Agriculturae fundamenta chemica'' (').

Mathematics

Johann Heinrich Lambert Johann Heinrich Lambert (, ''Jean-Henri Lambert'' in French; 26 or 28 August 1728 – 25 September 1777) was a polymath from the Republic of Mulhouse, generally referred to as either Swiss or French, who made important contributions to the subjec ...

gives a

proof that π is irrational In the 1760s, Johann Heinrich Lambert was the first to prove that the number is irrational, meaning it cannot be expressed as a fraction a/b, where a and b are both integers. In the 19th century, Charles Hermite found a proof that requires no p ...

Medicine

Leopold Auenbrugger Josef Leopold Auenbrugger or Avenbrugger (19 November 1722 – 17 May 1809), also known as Leopold von Auenbrugger, was an Austrian physician who invented percussion as a diagnostic technique. On the strength of this discovery, he is consid ...

publishes ''Novum ex Percussione Thoracis Humani Interni Pectoris Morbos Detegendi'' in Vienna, for the first time advocating

percussion A percussion instrument is a musical instrument that is sounded by being struck or scraped by a beater including attached or enclosed beaters or rattles struck, scraped or rubbed by hand or struck against another similar instrument. Exc ...

of the chest as a diagnostic measure. *

Giovanni Battista Morgagni Giovanni Battista Morgagni (25 February 1682 – 6 December 1771) was an Italian anatomist, generally regarded as the father of modern anatomical pathology, who taught thousands of medical students from many countries during his 56 years as Prof ...

publishes ' ("Of the seats and causes of diseases investigated through anatomy", published in Venice), a pioneering work of

anatomical pathology Anatomical pathology (''Commonwealth'') or Anatomic pathology (''U.S.'') is a medical specialty that is concerned with the diagnosis of disease based on the macroscopic, microscopic, biochemical, immunologic and molecular examination ...

. *

Samuel-Auguste Tissot Samuel Auguste André David Tissot (; 20 March 1728 – 13 June 1797) was a notable 18th-century Swiss physician. Life A well-reputed Calvinist Protestant neurologist, physician, professor and Vatican adviser, Tissot practiced in the Swiss city ...

publishes ''Avis au peuple sur sa santé'', a popular text of the century.

Veterinary medicine

* August 4 –

Claude Bourgelat Claude Bourgelat (27 March 1712 – 3 January 1779) was a French veterinary surgeon. He was a founder of scientifically informed veterinary medicine, and he created one of the earliest schools for training professional veterinarians. Life an ...

founds the first

veterinary school Veterinary education is the tertiary education of veterinarians. To become a veterinarian, one must first complete a veterinary degree in Doctor of Veterinary Medicine (DVM , V.M.D. , BVS, BVSc, BVMS, BVM, cand.med.vet). In the United States and ...

, in

Lyon Lyon,, ; Occitan: ''Lion'', hist. ''Lionés'' also spelled in English as Lyons, is the third-largest city and second-largest metropolitan area of France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of t ...

; courses begin in

1762 Events January–March * January 4 – Britain enters the Seven Years' War against Spain and Naples. * January 5 – Empress Elisabeth of Russia dies, and is succeeded by her nephew Peter III. Peter, an admirer of Frederick t ...

Technology

* Opening of

Matthew Boulton Matthew Boulton (; 3 September 172817 August 1809) was an English manufacturer and business partner of Scottish engineer James Watt. In the final quarter of the 18th century, the partnership installed hundreds of Boulton & Watt steam engine ...

Soho Manufactory The Soho Manufactory () was an early factory which pioneered mass production on the assembly line principle, in Soho, Birmingham, England, at the beginning of the Industrial Revolution. It operated from 1766–1848 and was demolished in 1853. Be ...

in England.

Awards

Copley Medal The Copley Medal is an award given by the Royal Society, for "outstanding achievements in research in any branch of science". It alternates between the physical sciences or mathematics and the biological sciences. Given every year, the medal is t ...

: not awarded

Births

* January 17 – James Hall (died

1832 Events January–March * January 6 – Abolitionist William Lloyd Garrison founds the New-England Anti-Slavery Society. * January 13 – The Christmas Rebellion of slaves is brought to an end in Jamaica, after the island's white plan ...

Scottish Scottish usually refers to something of, from, or related to Scotland, including: *Scottish Gaelic, a Celtic Goidelic language of the Indo-European language family native to Scotland *Scottish English *Scottish national identity, the Scottish ide ...

geologist A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...

and

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...

. * January 19 –

Pierre Marie Auguste Broussonet Pierre Marie Auguste Broussonet (28 February 1761 – 17 January 1807) was a French naturalist who contributed primarily to botany. He was born in Montpellier, where he was educated, and travelled to Morocco, Spain, the Canary Islands, and South ...

(died

1807 Events January–March * January 7 – The United Kingdom of Great Britain and Ireland issues an Order in Council prohibiting British ships from trading with France or its allies. * January 20 – The Sierra Leone Company, faced with b ...

), French naturalist and

physician A physician (American English), medical practitioner (Commonwealth English), medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through th ...

. * February 1 –

Christiaan Hendrik Persoon Christiaan Hendrik Persoon (1 February 1761 – 16 November 1836) was a German mycologist who made additions to Linnaeus' mushroom taxonomy. Early life Persoon was born in South Africa at the Cape of Good Hope, the third child of an immig ...

(died

1836 Events January–March * January 1 – Queen Maria II of Portugal marries Prince Ferdinand Augustus Francis Anthony of Saxe-Coburg-Gotha. * January 5 – Davy Crockett arrives in Texas. * January 12 ** , with Charles Darwin on board, r ...

n-born

Pomerania Pomerania ( pl, Pomorze; german: Pommern; Kashubian: ''Pòmòrskô''; sv, Pommern) is a historical region on the southern shore of the Baltic Sea in Central Europe, split between Poland and Germany. The western part of Pomerania belongs to ...

Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...

mycologist Mycology is the branch of biology concerned with the study of fungus, fungi, including their genetics, genetic and biochemistry, biochemical properties, their Taxonomy (biology), taxonomy and ethnomycology, their use to humans, including as a so ...

. * February 4 –

Blasius Merrem Blasius Merrem (4 February 1761 – 23 February 1824) was a German naturalist, zoologist, ornithologist, mathematician, and herpetologist. In 1804, he became the professor of political economy and botany at the University of Marburg. Early li ...

(died

1824 May 7: The almost completely deaf Beethoven premieres his Symphony No. 9 (Beethoven) , Ninth Symphony Events January–March * January 8 – After much controversy, Michael Faraday is finally elected as a member of the Royal Society, ...

), German

zoologist Zoology ()The pronunciation of zoology as is usually regarded as nonstandard, though it is not uncommon. is the branch of biology that studies the Animal, animal kingdom, including the anatomy, structure, embryology, evolution, Biological clas ...

. * June 7 – John Rennie (died

1821 Events January–March * January 21 – Peter I Island in the Antarctic is first sighted, by Fabian Gottlieb von Bellingshausen. * January 28 – Alexander Island, the largest in Antarctica, is first discovered by Fabian Gottlieb von Be ...

), Scottish-born

civil engineer A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructure while protecting the public and environmental health, as well as improving existing ...

. * October 27 –

Matthew Baillie Matthew Baillie FRS (27 October 1761 – 23 September 1823) was a British physician and pathologist, credited with first identifying transposition of the great vessels (TGV) and situs inversus. Early life and education He was born in the manse ...

(died

1823 Events January–March * January 22 – By secret treaty signed at the Congress of Verona, the Quintuple Alliance gives France a mandate to invade Spain for the purpose of restoring Ferdinand VII (who has been captured by armed revolutio ...

), Scottish-born

pathologist Pathology is the study of the causal, causes and effects of disease or injury. The word ''pathology'' also refers to the study of disease in general, incorporating a wide range of biology research fields and medical practices. However, when us ...

. * November 30 –

Smithson Tennant Smithson Tennant FRS (30 November 1761 – 22 February 1815) was an English chemist. He is best known for his discovery of the elements iridium and osmium, which he found in the residues from the solution of platinum ores in 1803. He also cont ...

(died

1815 Events January * January 2 – Lord Byron marries Anna Isabella Milbanke in Seaham, county of Durham, England. * January 3 – Austria, Britain, and Bourbon-restored France form a secret defensive alliance treaty against Prussi ...

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th ...

. * December 21 –

Jean-Louis Pons Jean-Louis Pons (24 December 176114 October 1831) was a French astronomer. Despite humble beginnings and being self-taught, he went on to become the greatest visual comet discoverer of all time: between 1801 and 1827 Pons discovered thirty-seven ...

(died

1831 Events January–March * January 1 – William Lloyd Garrison begins publishing '' The Liberator'', an anti-slavery newspaper, in Boston, Massachusetts. * January 10 – Japanese department store, Takashimaya in Kyoto establ ...

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...

. * December 25 –

William Gregor William Gregor (25 December 1761 – 11 June 1817) was an English clergyman and mineralogist who discovered the elemental metal titanium. Early years He was born at the Trewarthenick Estate in Cornwall, the son of Francis Gregor and Mary Co ...

(died

1817 Events January–March * January 1 – Sailing through the Sandwich Islands, Otto von Kotzebue discovers New Year Island. * January 19 – An army of 5,423 soldiers, led by General José de San Martín, starts crossing the ...

), Cornish

mineralogist Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the proces ...

Deaths

* January 4 –

Stephen Hales Stephen Hales (17 September 16774 January 1761) was an English clergyman who made major contributions to a range of scientific fields including botany, pneumatic chemistry and physiology. He was the first person to measure blood pressure. He al ...

(born

1677 Events January–March * January 1 – Jean Racine's tragedy ''Phèdre'' is first performed, in Paris. * January 21 – The first medical publication in America (a pamphlet on smallpox) is produced in Boston. * February 15 ...

), English

physiologist Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a sub-discipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical a ...

and clergyman. * March 21 –

Pierre Fauchard Pierre Fauchard (January 2, 1679 – March 21, 1761) was a French physician, credited as being the "father of modern dentistry". He is widely known for writing the first complete scientific description of dentistry, ''Le Chirurgien Dentiste'' (''" ...

(born

1679 Events January–June * January 24 – King Charles II of England dissolves the "Cavalier Parliament", after nearly 18 years. * February 3 – Moroccan troops from Fez are killed, along with their commander Moussa ben Ahmed be ...

), French

and "father of modern dentistry". * April 7 –

Thomas Bayes Thomas Bayes ( ; 1701 7 April 1761) was an English statistician, philosopher and Presbyterian minister who is known for formulating a specific case of the theorem that bears his name: Bayes' theorem. Bayes never published what would become his ...

(born c.

1702 In the Swedish calendar it was a common year starting on Wednesday, one day ahead of the Julian and ten days behind the Gregorian calendar. Events January–March * January 2 – A total solar eclipse is visible from the southe ...

), English

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

. * May 14 –

Thomas Simpson Thomas Simpson Fellow of the Royal Society, FRS (20 August 1710 – 14 May 1761) was a British mathematician and inventor known for the :wikt:eponym, eponymous Simpson's rule to approximate definite integrals. The attribution, as often in mathe ...

(born

1710 In the Swedish calendar it was a common year starting on Saturday, one day ahead of the Julian and ten days behind the Gregorian calendar. Events January–March * January 1 – In Prussia, Cölln is merged with Alt-Berlin b ...

), British mathematician. * November –

Giovanni Poleni Giovanni Poleni (b. Venice, around 1683; d. Padua, Nov., 1761) was a Marquess, physicist, mathematician and antiquarian. Early life He was the son of Marquess Jacopo Poleni and studied the classics, philosophy, theology, mathematics, and physics ...

(born c.

1683 Events January–March * January 5 – The Brandenburger Gold Coast, Brandenburger—African Company, of the German state of Brandenburg, signs a treaty with representatives of the Ahanta people, Ahanta tribe (in what is now Ghan ...

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...

mathematician and

. * November 30 –

John Dollond John Dollond FRS (10 June O.S. (21 June N.S.) 170630 November 1761) was an English optician, known for his successful optics business and his patenting and commercialization of achromatic doublets. Biography Dollond was the son of a Hugue ...

(born

1706 In the Swedish calendar it was a common year starting on Monday, one day ahead of the Julian and ten days behind the Gregorian calendar. Events January–March * January 26 – War of Spanish Succession: Bavarian uprising of 1705 ...

), English optician.

References

{{reflist 18th century in science 1760s in science