Photograph of Neil Armstrong on the Moon.
Item From: Records of the National Aeronautics and Space Administration. (01/1967-02/17/1973).
Happy Moon Day! Today we celebrate the first man to make his mark on the moon! Neil Armstrong’s famous epigram “That’s one small step for [a] man, one giant leap for mankind” actually was not pre-planned in advance as other astronauts had done, and he only thought up the phrase after they successfully touched down on the lunar surface.