It gives us great pleasure to provide this historical compendium of what will likely be remembered as one of the most remarkable achievements in the evolution of rocket propulsion. This achievement was the simultaneous development, testing, and flight use of a series of firstever propulsive devices that delivered Apollo 11 astronauts safely to the surface of the moon and back to Earth. These devices helped assure three individuals, Armstrong, Aldrin, and Collins a place in the history of humankind.