March 13th is the 72nd day of the year (73rd in leap years) in the Gregorian calendar. There are 293 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Friday or Sunday (58 in 400 years each) than on Wednesday or Thursday (57), and slightly less likely to occur on a Monday or Saturday (56).
1639 – Harvard College is named after clergyman John Harvard.
1781 – William Herschel discovers Uranus.
1881 – Alexander II of Russia is killed near his palace when a bomb is thrown at him (this is the Gregorian date; it was March 1 in the Julian calendar then in use in Russia).
1988 – The Seikan Tunnel, the longest undersea tunnel in the world, opens between Aomori and Hakodate, Japan.
2013 – Pope Francis is elected, in the papal conclave, as the 266th Pope of the Catholic Church.
Pirates of the Caribbean Actress Kaya Scodelario turns 26
Rapper Common turns 45
Shameless Actor William H. Macy turns 68
Dork Diaries Author Rachel Renee Russell turns 59
Good Luck Charlie Actress Leigh-Allyn Baker turns 46
Bright Actress Lucy Fry turns 26