The phrase comes from Apollo 11 on 20 July 1969, when Neil Armstrong reported back to Houston after the Lunar Module, named Eagle, touched down at Tranquility Base on the Moon. It was the first crewed Moon landing, and the calm radio announcement became one of the most quoted lines of the space age. Recordings of the transmission have since been reused in documentaries, films, news packages and memes, where the historic wording is borrowed to celebrate any successful landing or arrival.