At 20.17 GMT Neil Armstrong became the first man to set foot on the Moon's surface. He took this picture of Edwin "Buzz" Aldrin, the second man on the Moon.
See how Flight International reported the event...
Flightglobal's Apollo @ 40 page
Flightglobal's coverage from Flight International magazine from last week and from 1969

on July 21, 2009 8:21 AM | Reply
"At 20.17 GMT Neil Armstrong became the first man to set foot on the Moon's surface."
Not quite. The event at 20:17 GMT on July 20 was the LEM landing on the moon.
Neil Armstrong set foot on the moon at 02:56 GMT July 21st.