Important Events of March -13
- 1862 – American Civil War: The U.S. federal government forbids all Union army officers from returning fugitive slaves, thus effectively annulling the Fugitive Slave Act of 1850 and setting the stage for the Emancipation Proclamation.
- 1865 – American Civil War: The Confederate States of America agree to the use of African-American troops.
- 1881 – Alexander II of Russia is killed near his palace when a bomb is thrown at him (this is the Gregorian date; it was March 1 in the Julian calendar then in use in Russia).
- 1884 – The Siege of Khartoum begins. It lasts until January 26, 1885.
- 1900 – Second Boer War: British forces occupy Bloemfontein, Orange Free State.
- 1920 – The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
- 1921 – Mongolia is proclaimed an independent monarchy, ruled by Russian military officer Roman von Ungern-Sternberg as a dictator.
- 1930 – The news of the discovery of Pluto is telegraphed to the Harvard College Observatory.
- 1950 – Charles Krauthammer, American physician, journalist, and author
- 1963 – Vance Johnson, American football player
- 1900 – Giorgos Seferis, Greek poet and diplomat, Nobel Prize laureate (d. 1971)
- 1719 – Johann Friedrich Böttger, German chemist and potter (b. 1682)
- 1767 – Maria Josepha of Saxony, Dauphine of France (b. 1731)
- 1773 – Philibert Commerson, French historian and explorer (b. 1727)
- 1879 – Adolf Anderssen, German mathematician and chess player (b. 1818)
- 1881 – Alexander II of Russia (b. 1818)
March 13 is the 72nd day of the year (73rd in leap years) in the Gregorian calendar. There are 293 days remaining until the end of the year.