About the day » Wednesday August 21, 1861Calender converter

• Aldert Dob, Uithuizen,, Groningen, Nederland († 1865)
• Anna Maria Specken, Altenberge, Haren (Ems), Landkreis Emsland, Lower Saxony, Germany († 1867)
• Anna Maria Koop, Meer, Hebelermeer
• Alfred Beaumont ALBRIGHT, Edgbaston, Warwickshire, England
• Annigje Hageman, Wilsum, Kampen, Overijssel, Nederland († 1923)
• Adrianaus de Kok, Tilburg
• Aagje van Valkenburg - van der Kraan, Aarlanderveen, Zuid-Holland, Nederland († 1948)
• Annigje Hageman, Wilsum
• van der Harten, Leeuwarden († 1861)
• Anna Maria (Johann Bernard Fischer) Koop, Hebelermeer

• Atje Atzes Wallendal (3), Ferwerd, gem. Ferwerderadeel, Friesland, Nederland
• Cornelia van Ravenswaaij (35), Hilversum, Noord-Holland, Nederland
• Coleta De Wilde (47), Moerbeke
• Christiaan Cilissen (56), Oud-Vroenhoven
• van der Harten (0), Leeuwarden
• Anthonie Vermeule (0), 's-Heerenhoek
• Adrianus Koetsier (0), Nieuwveen, Zuid-Holland, Nederland
• Anna Cornelia van Ghert (41), Oudenbosch
• Arnold Joseph Kairis (74), Stembert, 4801 (B)
• Antonia Adriana de Veer (49), Gemeente Gorinchem, Zuid-Holland, Nederland

• 1840 » Ferdinand Hamer, Dutch bishop and missionary († 1900)
• 1856 » Medora de Vallombrosa, Marquise de Morès, American heiress († 1921)
• 1862 » Emilio Salgari, Italian journalist and author († 1911)
• 1869 » William Henry Ogilvie, Scottish-Australian poet and author († 1963)
• 1872 » Aubrey Beardsley, English author and illustrator († 1898)
• 1878 » Richard Girulatis, German footballer and manager († 1963)
• 1879 » Claude Grahame-White, English pilot and engineer († 1959)
• 1884 » Chandler Egan, American golfer and architect († 1936)
• 1885 » Édouard Fabre, Canadian runner († 1939)
• 1886 » Ruth Manning-Sanders, Welsh-English author and poet († 1988)

• 1814 » Benjamin Thompson, American-English physicist and colonel (b. 1753)
• 1835 » John MacCulloch, Scottish geologist and academic (b. 1773)
• 1836 » Claude-Louis Navier, French physicist and engineer (b. 1785)
• 1838 » Adelbert von Chamisso, German botanist and poet (b. 1781)
• 1853 » Charles Tristan, marquis de Montholon, French general (b. 1783)
• 1854 » Thomas Clayton, American lawyer and politician (b. 1777)
• 1867 » Juan Álvarez, Mexican general and president (1855) (b. 1790)
• 1870 » Ma Xinyi, Chinese general and politician, Viceroy of Liangjiang (b. 1821)
• 1888 » James Farnell, Australian politician, 8th Premier of New South Wales (b. 1825)
• 1905 » Alexander von Oettingen, Estonian theologian and statistician (b. 1827)

1. Jan
2. Johannes
3. Cornelis
4. Hendrik
5. Pieter
6. Willem
7. Gerrit
8. Jacob
9. Petrus
10. Jacobus
11. Dirk
12. Adrianus
13. Arie
14. Klaas
15. Hendrikus
16. Albert

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Catharina
7. Adriana
8. Hendrika
9. Wilhelmina
10. Aaltje
11. Grietje
12. Trijntje
13. Neeltje
14. Antje
15. Elizabeth
16. Mary

• Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
• From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
• The Netherlands had about 3.6 million citizens.
• January 19 » American Civil War: Georgia joins South Carolina, Florida, Mississippi, and Alabama in declaring secession from the United States.
• February 1 » American Civil War: Texas secedes from the United States.
• February 4 » American Civil War: In Montgomery, Alabama, delegates from six break-away U.S. states meet and form the Confederate States of America.
• March 30 » Discovery of the chemical elements: Sir William Crookes announces his discovery of thallium.
• September 17 » Argentine Civil Wars: The State of Buenos Aires defeats the Argentine Confederation at the Battle of Pavón.
• December 10 » American Civil War: The Confederate States of America accept a rival state government's pronouncement that declares Kentucky to be the 13th state of the Confederacy.

The temperature on August 21, 1861 was about 19.1 °C. There was 2 mm of rain. The air pressure was 0.5 kgf/m² and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 72%.