About the day » Sunday May 21, 1865Calender converter

• Anna Henriette den Ouden, Aalsmeer
• Albert van Keulen, Terschelling, Friesland, Nederland
• Akke Piers Kramer, Finkum, Leeuwarderadeel, Friesland, Nederland
• Adriana Drost, Strijen, Hoeksche Waard, Zuid-Holland, Netherlands († 1935)
• Aaltje Bakker, Assendelft NH NL
• Anna Catharina Falise, Tongerlo († 1906)
• 'Ernest' Eugène Guillaume Walthère NAVEAU, Hollogne-Sur-Geer, 4250, Liège, Belgique († 1954)
• * Hendrikus Johannes (1) Baars, Arnhem, Gelderland, NL († 1867)
• Adriana Teunisdr. Dorst, Strijen († 1935)
• Albert Petrie, Heerjansdam († 1865)

• Andries Flipse (50), Vrouwenpolder
• Antje de Geus (76), Warmenhuizen
• Alle Hattums Welling (0)
• Antje Bommel (2), Den Helder, Noord-Holland, Nederland
• Anna WIBBENS (0), Warffum Groningen Netherlands
• Agatha Hoogendam (0), Vlaardingen
• Andries Flipse (50), Vrouwenpolder
• (3) de Beer, Roosendaal en Nispen
• Aart Molenaar (1), Rhoon
• Antje Denkema (25), Leeuwarden

• 1850 » Giuseppe Mercalli, Italian priest and volcanologist († 1914)
• 1851 » Léon Bourgeois, French police officer and politician, 64th Prime Minister of France, Nobel Prize laureate († 1925)
• 1853 » Jacques Marie Eugène Godefroy Cavaignac, French politician († 1905)
• 1856 » José Batlle y Ordóñez, Uruguayan journalist and politician, President of Uruguay († 1929)
• 1860 » Willem Einthoven, Indonesian-Dutch physician, physiologist, and academic, Nobel Prize laureate († 1927)
• 1861 » Abel Ayerza, Argentinian physician and academic († 1918)
• 1863 » Archduke Eugen of Austria († 1954)
• 1864 » Princess Stéphanie of Belgium († 1945)
• 1873 » Hans Berger, German neurologist and academic († 1941)
• 1878 » Glenn Curtiss, American cyclist and engineer († 1930)

• 1844 » Giuseppe Baini, Italian priest and composer (b. 1775)
• 1858 » José de la Riva Agüero, Peruvian soldier and politician, 1st President of Peru and 2nd President of North Peru (b. 1783)
• 1862 » John Drew, Irish-American actor and manager (b. 1827)
• 1879 » Arturo Prat, Chilean lawyer and commander (b. 1848)
• 1894 » Émile Henry, French anarchist (b. 1872)
• 1894 » August Kundt, German physicist and academic (b. 1839)
• 1895 » Franz von Suppé, Austrian composer and conductor (b. 1819)
• 1901 » Joseph Olivier, French rugby player (b. 1874)
• 1911 » Williamina Fleming, Scottish-American astronomer and academic (b. 1857)
• 1915 » Leonid Gobyato, Russian general and engineer (b. 1875)

• Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
• The Netherlands had about 3.6 million citizens.
• January 31 » American Civil War: Confederate General Robert E. Lee becomes general-in-chief.
• March 19 » American Civil War: The Battle of Bentonville begins. By the end of the battle two days later, Confederate forces had retreated from Four Oaks, North Carolina.
• April 9 » American Civil War: Robert E. Lee surrenders the Army of Northern Virginia (26,765 troops) to Ulysses S. Grant at Appomattox Court House, Virginia, effectively ending the war.
• May 9 » American Civil War: President Andrew Johnson issues a proclamation ending belligerent rights of the rebels and enjoining foreign nations to intern or expel Confederate ships.
• July 31 » The first narrow-gauge mainline railway in the world opens at Grandchester, Queensland, Australia.
• December 1 » Shaw University, the first historically black university in the southern United States, is founded in Raleigh, North Carolina.

The temperature on May 21, 1865 was about 22.8 °C. The air pressure was 1.5 kgf/m² and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 45%.