April 7, 1927, Commerce Secretary Herbert Hoover read a speech in Washington which was viewed on television by an audience in New York. It was the first ever demonstration of long distance television transmission.
On April 7, 1862, two dozen men hatched a plan to slip behind Confederate lines, steal a locomotive, and run it north destroying track along the way. They actually pulled this off, and Private Jacob Parrott became the first recipient of the Medal of Honor.
Buster Keaton, my favorite comedian/director of all time made this into one of, if not the, best silent films ever made...The General.