(d. 1880) February 13 – Angelica Singleton Van Buren, Acting First Lady of the United States (d. 1877) February 14 – Frederick Douglass (his day of birth was never established; he adopted this date), American abolitionist author, statesman (d. 1895) February 18 – Pedro Figueredo, Cuban poet, musician, and freedom writer (d. 1870) March 11 – Henri Étienne Sainte-Claire Deville, French chemist (d. 1881) March 15 – Mariano Álvarez, Filipino general (d. 1924) March 22 – John Ainsworth Horrocks, English-born explorer of South Australia (d. 1846) March 24 – William E. Le Roy, American admiral (d. 1888) March 28 – Wade Hampton III, Confederate soldier and South Carolinian politician (d. 1902) April 4 – Thomas Mayne Reid, Irish-American novelist (d. 1883) April 6 – Aasmund Olavsson Vinje, Norwegian journalist and poet (d. 1870) April 8 – King Christian IX of Denmark (d. 1906) August Wilhelm von Hofmann, German chemist (d. 1892) April 17 – Emperor Alexander II of Russia (d. 1881) April 19 – Sir Arthur Elton, 7th Baronet, English writer, Liberal Party politician (d. 1883) May 5 – Karl Marx, German political philosopher, co-author of The Communist Manifesto (d. 1883) May 27 – Amelia Bloomer, American dress reformer, women's rights activist (d. 1894) June 3 – Louis Faidherbe, French general and colonial administrator (d. 1889) June 17 Sophie of Württemberg, Dutch queen (d. 1877) Charles Gounod, French composer (d. 1893) June 18 – Angelo Secchi, Italian astronomer (d. 1878) July–December July 1 – Ignaz Semmelweis, Hungarian physician, obstetrician (d. 1865) July 18 Celadon Leeds Daboll, American merchant, inventor (d. 1866) Louis Gerhard De Geer, 1st Prime Minister of Sweden (d. 1896) July 22 – J. Gregory Smith, Vermont governor (d. 1891) July 27 – Agostino Roscelli, Italian priest, founder of the Institute of Sisters of the Immaculata (d. 1902) July 30 Emily Brontë, British novelist (d. 1848) Jan Heemskerk, 2-time prime minister of the Netherlands (d. 1897) August 11 – Méry von Bruiningk, Estonian democrat (d. 1853) August 25 – Shiv Dayal Singh, Founder and first SatGuru of RadhaSoami Faith (d. 1878) September 1 – José María Castro Madriz, first President of Costa Rica, founder of the republic (d. 1892) September 12 – Richard Jordan Gatling, American inventor, gunsmith (d. 1903) September 27 – Adolph Wilhelm Hermann Kolbe, German chemist (d. 1884) October 8 – John Henninger Reagan, American Confederate politician (d. 1905) October 12 – Maximilian Cercha, Polish