March 6 – The Battle of the Alamo ends; 182 Texan settler soldiers die in a struggle with approximately 5,000 Mexican soldiers.
March 11 – Sultan Mahmud II abolishes the posts of Reis ül-Küttab and Kahya Bey and establishes the Ottoman ministries of Foreign Affairs and of the Interior in their place.
March – First monthly part of Charles Dickens' The Pickwick Papers ("The Posthumous Papers of the Pickwick Club..., edited by Boz") published in London.