In 1944 – Harvard University President James Conant wrote to IBM founder Thomas Watson Sr. to let him know that the Harvard Mark I was operating smoothly. It was used in conjunction with the U.S. Navy Bureau of Ships.
In 1967 – The Surveyor 3 spacecraft was successfully launched from Cape Kennedy, Florida on its mission to the Moon. It was the first to carry a surface soil sampling scoop.
In 1970 – The Apollo 13 spacecraft returned safely to Earth after a frightening malfunction caused the team to abort landing on the Moon and instead scramble to keep themselves alive.