CIA's Role in the Study of UFOs, 1947-1990

UFO History

a bunch of historical (ish?) events that relate to the UFO phenomenon

Report by Gerald K. Haines, published 1997.

CIA's Role in the Study of UFOs, 1947-1990

https://www.cia.gov/resources/csi/studies-in-intelligence/studies-in-intelligence-1997/cias-role-in-the-study-of-ufos-1947-1990/