May 4th is the 124th day of the year (125th in leap years) in the Gregorian calendar. There are 241 days remaining until the end of the year.
1493 – Pope Alexander VI issued the papal bull Inter caetera, establishing a line of demarcation dividing the New World between Spain and Portugal.
1780 – The first running of the Epsom Derby took place, won by Diomed, owned by Charles Bunbury.
1942 – World War II: The Imperial Japanese Navy engaged Allied naval forces at the Battle of the Coral Sea, the first fleet action in which aircraft carriers engaged each other.
1988 – A fire at an industrial plant in Henderson, Nevada, U.S., caused tons of Space Shuttle fuel to explode, resulting in two deaths, 372 injuries, and $100 million in damage.
2000 – Ken Livingstone took office as the first Mayor of London.
Randy Travis turns 59
Will Arnett turns 43
Erin Andrews turns 40
Lance Bass turns 39
Ruth Negga turns 37