5th » American Civil War: In order to help pay for the war effort, the Federal government of the United States known as United States government levies the first income tax as part of the Revenue Act of 1861 (3% of all incomes over US $800; rescinded in 1872).
5th » The United States Army abolishes Flagellation e.g flogging.
19th » First ascent of Weisshorn, fifth highest summit in the Alps.
28th » American Civil War: Union (American Civil War) e.g Union forces attack Cape Hatteras, North Carolina in the Battle of Hatteras Inlet Batteries which lasts for two days.
29th » American Civil War: United States Navy squadron captures forts at Hatteras Inlet, North Carolina.