The year 1804 in

science Science is a systematic endeavor that Scientific method, builds and organizes knowledge in the form of Testability, testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earli ...

and

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

involved some significant events, listed below.

Astronomy and space science

* April 5 – High Possil meteorite, the first recorded meteorite to fall in

Scotland Scotland (, ) is a Countries of the United Kingdom, country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a Anglo-Scottish border, border with England to the southeast ...

in modern times, falls at

Possil Possilpark is a district in the Scottish city of Glasgow, situated north of the River Clyde and centred around Saracen Street. The area developed around Saracen Foundry of Walter MacFarlane & Co., which was the main employer. In the wake of the ...

. * September 1 –

Karl Ludwig Harding Karl Ludwig Harding (29 September 1765 – 31 August 1834) was a German astronomer, who discovered 3 Juno, the third asteroid of the main-belt in 1804. The lunar crater '' Harding'' and the asteroid 2003 Harding are named in his honor. ...

discovers the asteroid Juno.

Botany

* March 7 – John Wedgwood founds the

Horticultural Society of London The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr ( ...

. * Jacques-Julien Labillardière begins publication of '' Novæ Hollandiæ Plantarum Specimen'' in

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, 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), ma ...

, the first

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

of Australia. * Publication in Paris of Nicolas-Théodore de Saussure's collected papers ''Recherches chimiques sur la végétation'', outlining the basic reaction of

photosynthesis Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored i ...

. * Publication in London of Maria Elizabetha Jacson's ''Botanical Lectures by a Lady''.

Chemistry

William Hyde Wollaston William Hyde Wollaston (; 6 August 1766 – 22 December 1828) was an English chemist and physicist who is famous for discovering the chemical elements palladium and rhodium. He also developed a way to process platinum ore into malleable ingot ...

discovers how to make malleable

platinum Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish , a diminutive of "silver". Pla ...

. * German pharmacist

Friedrich Sertürner Friedrich Wilhelm Adam Sertürner (19 June 1783 – 20 February 1841) was a German pharmacist and a pioneer of alkaloid chemistry. He is best known for his discovery of morphine in 1804. Biography Friedrich Wilhelm Adam Sertürner was born to J ...

first isolates

morphine Morphine is a strong opiate that is found naturally in opium, a dark brown resin in poppies (''Papaver somniferum''). It is mainly used as a pain medication, and is also commonly used recreationally, or to make other illicit opioids. T ...

from opium, probably the first ever isolation of a natural plant

alkaloid Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar ...

Exploration

* May 14 – The

Lewis and Clark Expedition The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase. The Corps of Discovery was a select gr ...

departs from Camp Dubois and begin their historic journey by traveling up the Missouri River.

Geology

Alexander von Humboldt Friedrich Wilhelm Heinrich Alexander von Humboldt (14 September 17696 May 1859) was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, ...

discovers that the Earth's magnetic field decreases from the poles to the equator.

Medicine

* October 13 – In Japan,

Hanaoka Seishū was a Japanese surgeon of the Edo period with a knowledge of Chinese herbal medicine, as well as Western surgical techniques he had learned through ''Rangaku'' (literally "Dutch learning", and by extension "Western learning"). Hanaoka is said t ...

(華岡青洲) performs a partial

mastectomy Mastectomy is the medical term for the surgical removal of one or both breasts, partially or completely. A mastectomy is usually carried out to treat breast cancer. In some cases, women believed to be at high risk of breast cancer have the operat ...

for

breast cancer Breast cancer is cancer that develops from breast tissue. Signs of breast cancer may include a lump in the breast, a change in breast shape, dimpling of the skin, milk rejection, fluid coming from the nipple, a newly inverted nipple, or a r ...

on a 60-year-old woman named Kan Aiya, using tsūsensan as a

general anesthetic General anaesthetics (or anesthetics, see spelling differences) are often defined as compounds that induce a loss of consciousness in humans or loss of righting reflex in animals. Clinical definitions are also extended to include an induced coma ...

, generally regarded as the first reliably documented operation performed under general anesthesia. * Publication of ''The Anatomy of the Human Body, vol. 3, Nervous System'' by Charles Bell. *

Antonio Scarpa Antonio Scarpa (9 May 1752 – 31 October 1832) was an Italian anatomist and professor. Biography Scarpa was born to an impoverished family in the frazione of Lorenzaga, Motta di Livenza, Veneto. An uncle, who was a member of the priesthood, gav ...

publishes ''Riflessioni ed Osservazione anatomico-chirugiche sull' Aneurisma'', a classic text on aneurisms.

Meteorology

Joseph Louis Gay-Lussac Joseph Louis Gay-Lussac (, , ; 6 December 1778 – 9 May 1850) was a French chemist and physicist. He is known mostly for his discovery that water is made of two parts hydrogen and one part oxygen (with Alexander von Humboldt), for two laws ...

and Jean Baptiste Biot study the atmosphere from a hot-air balloon.

Paleontology

James Parkinson James Parkinson (11 April 175521 December 1824) was an English surgeon, apothecary, geologist, palaeontologist and political activist. He is best known for his 1817 work ''An Essay on the Shaking Palsy'', in which he was the first to describe ...

publishes the first volume of ''Organic Remains of a Former World'', supporting belief in Catastrophism.

Technology

* February 21 – The

Cornishman The Cornish people or Cornish ( kw, Kernowyon, ang, Cornƿīelisċ) are an ethnic group native to, or associated with Cornwall: and a recognised national minority in the United Kingdom, which can trace its roots to the ancient Britons w ...

Richard Trevithick Richard Trevithick (13 April 1771 – 22 April 1833) was a British inventor and mining engineer. The son of a mining captain, and born in the mining heartland of Cornwall, Trevithick was immersed in mining and engineering from an early age. He w ...

's newly built "Penydarren" steam locomotive operates on the

Merthyr Tramroad The Merthyr Tramroad (sometimes referred to as the Penydarren Tramroad due to its use by Trevithick's locomotive built at that ironworks) was a long line that opened in 1802, connecting the private lines belonging to the Dowlais and Penydarren I ...

between

Penydarren Ironworks Penydarren Ironworks was the fourth of the great ironworks established at Merthyr Tydfil in South Wales. Built in 1784 by the brothers Samuel Homfray, Jeremiah Homfray, and Thomas Homfray, all sons of Francis Homfray of Stourbridge. Their f ...

in Merthyr Tydfil and

Abercynon Abercynon (), is both a village and a community (and electoral ward) in the Cynon Valley within the unitary authority of Rhondda Cynon Taf, Wales. The community comprises the village and the districts of Carnetown and Grovers Field to the south, ...

in South Wales, following several trials since February 13, the world's first locomotive to work on rails. * The first

Burr Truss The Burr Arch Truss—or, simply, Burr Truss or Burr Arch—is a combination of an arch and a ''multiple kingpost'' truss design. It was invented in 1804 by Theodore Burr, patented on April 3, 1817, and used in bridges, usually covered bridge ...

bridge is built by

Theodore Burr Theodore Burr (August 16, 1771 – November 22, 1822) was an inventor from Torrington, Connecticut, who was credited with the Burr Arch Truss bridge design. He designed and built one of the first bridges across the Hudson River and several b ...

across the

Hudson River The Hudson River is a river that flows from north to south primarily through eastern New York. It originates in the Adirondack Mountains of Upstate New York and flows southward through the Hudson Valley to the New York Harbor between N ...

Waterford, New York Waterford is a town in Saratoga County, New York, United States. The population was 8,423 at the 2010 census. The name of the town is derived from its principal village, also called Waterford. The town is located in the southeast corner of Sa ...

. *

William Congreve William Congreve (24 January 1670 – 19 January 1729) was an English playwright and poet of the Restoration period. He is known for his clever, satirical dialogue and influence on the comedy of manners style of that period. He was also a mi ...

begins development of the solid-fuel

Congreve rocket The Congreve rocket was a type of rocket artillery designed by British inventor Sir William Congreve in 1808. The design was based upon the rockets deployed by the Kingdom of Mysore against the East India Company during the Second, Third, ...

as an artillery weapon. * The

British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...

first uses shrapnel shells ("spherical case shot"), invented by Major

Henry Shrapnel Lieutenant General Henry Shrapnel (3 June 1761 – 13 March 1842) was a British Army officer whose name has entered the English language as the inventor of the shrapnel shell. Henry Shrapnel was born at Midway Manor in Bradford-on-Avon, Wiltsh ...

, in action, against the Dutch in Suriname.

Awards

* Copley Medal:

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 con ...

Births

* February 12 –

Heinrich Lenz Heinrich Friedrich Emil Lenz (; ; also Emil Khristianovich Lenz, russian: Эмилий Христианович Ленц; 12 February 1804 – 10 February 1865), usually cited as Emil Lenz or Heinrich Lenz in some countries, was a Russian physic ...

, Russian-born Baltic German

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 cau ...

(died 1865) * February 18 –

Baron Carl von Rokitansky Baron Carl von Rokitansky (german: Carl Freiherr von Rokitansky, cs, Karel Rokytanský; 19 February 1804 – 23 July 1878) was a Bohemian physician, pathologist, humanist philosopher and liberal politician, founder of the Viennese School of Medi ...

, Bohemian

pathologist Pathology is the study of the 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 used in t ...

(died

1878 Events January–March * January 5 – Russo-Turkish War – Battle of Shipka Pass IV: Russian and Bulgarian forces defeat the Ottoman Empire. * January 9 – Umberto I becomes King of Italy. * January 17 – Bat ...

) * March 8 – Alvan Clark, American telescope manufacturer (died

1887 Events January–March * January 11 – Louis Pasteur's anti-rabies treatment is defended in the Académie Nationale de Médecine, by Dr. Joseph Grancher. * January 20 ** The United States Senate allows the Navy to lease Pearl ...

) * April 5 **

Mary Philadelphia Merrifield Mary Philadelphia Merrifield (née Watkins; 15 April 1804 – 4 January 1889) was a British writer on art and fashion. She later became an algologist (an expert on seaweed). Life She was born Mary Philadelphia Watkins in Brompton, London in 18 ...

, née Watkins,

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 ...

fashion writer and algologist (died

1889 Events January–March * January 1 ** The total solar eclipse of January 1, 1889 is seen over parts of California and Nevada. ** Paiute spiritual leader Wovoka experiences a vision, leading to the start of the Ghost Dance movement in t ...

) ** Matthias Schleiden,

German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

botanist (died

1881 Events January–March * January 1– 24 – Siege of Geok Tepe: Russian troops under General Mikhail Skobelev defeat the Turkomans. * January 13 – War of the Pacific – Battle of San Juan and Chorrillos: The ...

) * May 4 –

Margaretta Riley Margaretta Riley, née Hopper (May 4, 1804 - July 16, 1899) was an English botanist. She studied ferns and was the first British pteridologist of her sex. Life She was born in Castle Gate, Nottingham on 4 May 1804 to Richard and Margaretta Hoppe ...

, English

pteridologist #REDIRECTFern A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pter ...

(died

1899 Events January 1899 * January 1 ** Spanish rule ends in Cuba, concluding 400 years of the Spanish Empire in the Americas. ** Queens and Staten Island become administratively part of New York City. * January 2 – **Bolivia sets up a c ...

) * May 9 – Hewett Watson, English biologist (died 1881) * May 13 –

Janet Taylor Janet Taylor (born Jane Ann Ionn, 13 May 1804 – 25 January 1870) was an English astronomer, navigation expert, mathematician, meteorologist, and founder of the George Taylor Nautical Academy. She was the author of various astronomy and naviga ...

, née Jane Ann Ionn, English mathematician and navigational instrument maker (died

1870 Events January–March * January 1 ** The first edition of ''The Northern Echo'' newspaper is published in Priestgate, Darlington, England. ** Plans for the Brooklyn Bridge are completed. * January 3 – Construction of the ...

) * June 5 –

Robert Schomburgk Sir Robert Hermann Schomburgk (5 June 1804 – 11 March 1865) was a German-born explorer for Great Britain who carried out geographical, ethnological and botanical studies in South America and the West Indies, and also fulfilled diplomatic missio ...

, German-born explorer (died 1865) * July 20 – Richard Owen, English anatomist and paleontologist (died

1892 Events January–March * January 1 – Ellis Island begins accommodating immigrants to the United States. * February 1 - The historic Enterprise Bar and Grill was established in Rico, Colorado. * February 27 – Rudolf Diesel applies fo ...

) * September 14 –

John Gould John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist. He published a number of monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould, and several other artists, including Edward Lear, ...

, English ornithologist (died 1881) * September 16 –

Squire Whipple Squire Whipple (September 16, 1804 – March 15, 1888) was an American civil engineer. Biography Squire Whipple was born in Hardwick, Massachusetts on September 16, 1804. His family moved to New York when he was thirteen. He received his sec ...

, American civil engineer (died

1888 In Germany, 1888 is known as the Year of the Three Emperors. Currently, it is the year that, when written in Roman numerals, has the most digits (13). The next year that also has 13 digits is the year 2388. The record will be surpassed as late ...

) * October 1 – William Stokes,

Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...

physician (died 1878) * October 24 –

Wilhelm Eduard Weber Wilhelm Eduard Weber (; ; 24 October 1804 – 23 June 1891) was a German physicist and, together with Carl Friedrich Gauss, inventor of the first electromagnetic telegraph. Biography of Wilhelm Early years Weber was born in Schlossstrasse i ...

, German physicist (died

1891 Events January–March * January 1 ** Paying of old age pensions begins in Germany. ** A strike of 500 Hungarian steel workers occurs; 3,000 men are out of work as a consequence. ** Germany takes formal possession of its new Af ...

) * December 10 –

Carl Gustav Jacob Jacobi Carl Gustav Jacob Jacobi (; ; 10 December 1804 – 18 February 1851) was a German mathematician who made fundamental contributions to elliptic functions, dynamics, differential equations, determinants, and number theory. His name is occasiona ...

, German mathematician (died 1851) * December 24 – Édouard Chassaignac, French surgeon (died 1879)

Deaths

* February 6 –

Joseph Priestley Joseph Priestley (; 24 March 1733 – 6 February 1804) was an English chemist, natural philosopher, separatist theologian, grammarian, multi-subject educator, and liberal political theorist. He published over 150 works, and conducted exp ...

, English chemist (born

1733 Events January–March * January 13 – Borommarachathirat V becomes King of Siam (now Thailand) upon the death of King Sanphet IX. * January 27 – George Frideric Handel's classic opera, ''Orlando'' is performed for th ...

) * March 26 – Wolfgang von Kempelen, Hungarian inventor (born 1734) * August 30 – Thomas Percival, English reforming physician and medical ethicist (born 1740) * September 20 –

Pierre Méchain Pierre François André Méchain (; 16 August 1744 – 20 September 1804) was a French astronomer and surveyor who, with Charles Messier, was a major contributor to the early study of deep-sky objects and comets. Life Pierre Méchain was born i ...

, French astronomer (born 1744) * October 2 –

Nicolas-Joseph Cugnot Nicolas-Joseph Cugnot (26 February 1725 – 2 October 1804) was a French inventor who built the world's first full-size and working self-propelled mechanical land-vehicle, the "Fardier à vapeur" – effectively the world's first automobile. B ...

, French mechanical engineer (born

1725 Events January–March * January 15 – James Macrae, a former captain of a freighter for the British East India Company, is hired by the Company to administer the Madras Presidency (at the time, the "Presidency of Fort St. Geo ...

) * November 5 - Louis Lépecq de La Clôture, French epidemiologist (born 1736)

References

{{reflist 19th century in science 1800s in science