- June (21): Maury Island Incident
- July: Roswell Incident
- July 26: National Security Act of 1947 signed by CIA established
- September 9, 1947 — First computer bug found in relay 70, panel F of the Mark II Aiken Relay Calculator
- December 1 — Aleister Crowley died
- December 30 — Project Sign founded to officially investigate UFOs
Related:
- Project Sign The first Air Force Project to research the nature...
- Maury Island Incident One of the first and most totemic episodes of...
- Project Grudge An early Air Force project investigating UFOs. Declassified on July...
- Scientology A religion founded by L Ron Hubbard who based it...
- Harold Dahl A harbor patrolman (or perhaps lumber scavenger) who witnessed/created...
