1st » The Empire of Brazil, Argentina, and Uruguay sign the Treaty of the Triple Alliance.
5th » In North Bend, Ohio (a suburb of Cincinnati), the first train robbery in the United States takes place.
10th » American Civil War: Jefferson Davis is captured by Union (American Civil War) e.g Union troops near Irwinville, Georgia.
12th » American Civil War: The Battle of Palmito Ranch: The first day of the last major land action to take place during the Civil War, resulting in a Confederate victory.
17th » The International Telegraph Union (later the International Telecommunication Union) is established in Paris.
25th » In Mobile, Alabama, 300 are killed when an Mobile magazine explosion called ordnance depot explodes.
26th » American Civil War: the Confederate States of America e.g Confederate General Edmund Kirby Smith, commander of the Confederate Trans-Mississippi division, is the last full general of the Confederate Army to surrender, at Galveston, Texas.