Summer 2003, Vol. 35, No. 2 By Bruce I. Bustard Enlarge Buzz Aldrin on the Moon, July 20, 1969. View in National Archives Catalog "That's one small step for man, one giant leap for all mankind." — Astronaut Neil Armstrong's words as he made his first step onto the surface of the Moon July 20, 1969 What would it be like if we could recreate a single day in our past? Not just the parts we remember, the events to which we attribute great significance, but the whole day filled with all its interacting parts.