- Mar 2 Government Printing Office purchases 1st printing plant, Washington
- Mar 2 US creates Dakota & Nevada Territories out of the Nebraska & Utah territories
- Mar 3 Alexander II of Russia signs the Emancipation Manifesto, freeing serfs and granted them the full rights of free citizens [OS=Feb 19]
- Mar 4 Confederate States adopt "Stars & Bars" flag (US Civil War)
Event of Interest
Mar 4 Abraham Lincoln is inaugurated as the 16th US President
Abraham Lincoln
- Mar 4 US President Abraham Lincoln opens Government Printing Office
- Mar 6 Provisionary Confederate Congress establishes Confederate Army
- Mar 8 St Augustine Florida surrenders to Union armies
- Mar 9 Confederate currency authorized - $50, $100, $500, $1,000
- Mar 10 West African political leader El Hadj Umar Tall seizes the city of Segou, destroying the Bambara Empire of Mali
- Mar 11 Confederate convention in Montgomery adopts constitution (US Civil War)
- Mar 13 23rd Grand National: Joseph Kendall aboard Jealousy wins
- Mar 16 Arizona Territory votes to leave the Union (US Civil War)
- Mar 16 Confederate government appoints commissioners to Britain
Event of Interest
Mar 16 Edward Clark became Governor of Texas, replacing Sam Houston, who is evicted from the office for refusing to take an oath of loyalty to the Confederacy (US Civil War)
Sam Houston
Event of Interest
Mar 17 Italy is unified into a single kingdom under Victor Emmanuel II following the campaigns led by Giuseppe Garibaldi
Giuseppe Garibaldi
Victor Emmanuel II