May 13th (1861) was a Monday. It's the 133rd day of the year (134th in leap years) in the Gregorian calendar. There are 232 days left to the end of the year.
Historical Events for 13th May, 1861
» American Civil War: Queen Victoria of the United Kingdom issues a "proclamation of Neutrality (international relations) or neutrality" which recognizes the Confederate States of America e.g breakaway states as having belligerent rights.
» The Great Comet of 1861 is discovered by John Tebbutt of Windsor, New South Wales, Australia.