When did NASA start?

NASA started on October 1, 1958
Otober 1st, 1958
NASA was established by the National Aeronautics and Space Act on July 29, 1958. So it has been around for very nearly 52 years.
NASA was established by the National Aeronautics and Space Act on July 29, 1958, replacing its predecessor, the National Advisory Committee for Aeronautics (NACA). The agency became operational on October 1, 1958.