What historical context allowed certain individuals flying the X-15 rocket plane to retroactively receive astronaut wings from the FAA?

Answer

Their flights were critical precursors to the space program

Individuals who flew early, experimental X-15 rocket plane flights were retroactively given wings by the FAA because their experience was deemed integral to creating the possibility of future spaceflight.

What historical context allowed certain individuals flying the X-15 rocket plane to retroactively receive astronaut wings from the FAA?

#Videos

What are the qualifications to be called an 'astronaut' ? - YouTube

SpacecareerQualificationspace travelAstronautrequirements