- Mar 1 Library of Hawaii founded
- Mar 3 1st female lawyer heard by US Supreme Court (Belva Ann Bennett Lockwood)
- Mar 3 US Geological Survey director authorized in Department of the Interior
- Mar 23 War of the Pacific fought between Chile and the joints forces of Bolivia and Peru. Chile successfully takes over Arica and Tarapacá, leaving Bolivia a landlocked country.
- Mar 27 Longest championship fight (136 rounds)
- Mar 28 41st Grand National: Garry Moore aboard 5/1 chance The Liberator wins by 2 lengths from Jackal
- Mar 29 Tsjaikovski's opera "Jevgeni Onegin," premieres in Moscow