Air Force establishes Project Blue Book
March 1952 · Wright-Patterson AFB, Ohio · Government program · Primary document linked
The Air Force ordered Project Blue Book, the longest-running of its UFO investigation efforts, succeeding earlier projects (Sign and Grudge). It collected and evaluated sighting reports until 1969.
Why it matters (4/5)
Created the longest-running official UFO investigation and the main public archive of cases.
Sources
- Public Interest in UFOs Persists 50 Years After Project Blue Book Termination (U.S. National Archives (NARA)), primary
- Project BLUE BOOK – Unidentified Flying Objects (U.S. National Archives (NARA)), primary
- RG 341.15 Records of Project Blue Book 1947-1969 (Patrick Gross (ufologie.patrickgross.org)), context