- 1883 Bob Rogers is acknowledged as the first American pro sports trainer when he is hired by the NY Athletic Club
Batman first appears in Detective Comics #27
On May 1, 1939
- 1576 Stefan Batory, the reigning Prince of Transylvania, marries Anna Jagiellon and they become the co-rulers of the Polish-Lithuanian Commonwealth.
- 1840 Women's rights activist Elizabeth Cady Stanton (24) weds fellow abolitionist Henry Brewster Stanton (34)
- 1850 Soldier William Tecumseh Sherman (30) weds Eleanor Boyle Ewing in Washington, D.C.