On this day in 1887, the first US hospital for cancer patients was inaugurated in New York.
On this day in 1941, Japanese planes bombed the American naval base at Pearl Harbor, Hawaii, killing 2,400 and destroying many aircraft and battleships.
On this day in 1949, the government of the Republic of China moved its seat of power to Taipei.
And on this day in 1971, an unmanned Soviet space capsule sent back radio and television signals from Mars.