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  1. 19th century John Dalton (1766–1844) 1803 John Dalton proposes Dalton's law, which describes relationship between the components in a mixture of gases and the relative pressure each contributes to that of the overall mixture. 1805 Joseph Louis Gay-Lussac discovers that water is composed of two parts hydrogen and one part oxygen by volume.

  2. 524. 25 June. Battle of Vézeronce: The united armies of Clovis' sons inflicted a serious defeat on the Burgundian king Godomar. Chlodomer, the king of Orléans, was killed in battle. Chlothar I, the king of Neustria, had two of Chlodomer 's sons killed and forced the third into hiding thus inheriting his kingdom. 534.

  3. Subcategories. This category has the following 66 subcategories, out of 66 total. 19th century by city ‎ (18 C) 19th century by continent ‎ (23 C) 19th century by country ‎ (246 C) 1800s ‎ (42 C, 2 P) 1810s ‎ (43 C, 2 P) 1820s ‎ (45 C, 2 P)

  4. This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. This timeline of antisemitism chronicles the facts of antisemitism, hostile actions or discrimination against Jews as a religious or ethnic group, in the 20th century. It includes events in the history of antisemitic thought, actions taken ...

  5. The Selk'nam Genocide was the genocide of the Selk'nam people, indigenous inhabitants of Tierra del Fuego in South America, from the second half of the 19th to the early 20th century. Spanning a period of between ten and fifteen years the Selk'nam, which had an estimated population of between three and four thousand, saw their numbers reduced to 500.

  6. American mathematicians born in the 19th century. Florence Eliza Allen (1876–1960) Emil Artin (1898–1962) George David Birkhoff (1884–1944) Maxime Bôcher (1867–1918) Leonard Eugene Dickson (1874–1954), algebra and number theory. Jesse Douglas (1897–1965), Fields Medalist.

  7. Eduard Simon, a German apothecary, discovers polystyrene. 1844. Thomas Hancock patents the vulcanization of rubber in Britain immediately followed by Charles Goodyear in United States. [2] 1856. Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [3] 1869.