Just for some fun # 2681 date calcuations [-30]   Monday, March 11 1862 Abraham Lincoln removes George McClellen as general-in-chief [-45]   Tuesday, March 26  1945 Allies led by US Marine Corps secure island of Iwo Jima from Imperial Japanese Army, after 18,000 Japanese & 6,000 Americans killed [-60]  Wednesday, April 10  1957 "12 Angry Men", directed by Sidney Lumet, starring Henry Fonda and Lee J. Cobb, is released [-90]   Friday, May 10  1924 J. Edgar Hoover appointed head of FBI