I allways love when people taking one picture and completely messes it up in various situations Like the one fotball dude I canot remember name of, even got his own internet page dedicated to his rather interesting pose.
Kennedy assassination, Stalin, the rise of communism, the fall of conmunism, the fall of the British Empire, the great depression, watergate, black enfrichesment in USA, a black president in USA, end of apartide in RSA, the cold war, various major natural disasters, button and Hamilton crashing into eachother at Canada... A boat sinking doesn't come in top 100 really