The following events happened in the year 1974:
- Pre-US Space Force
- Area 51 as a DUMB, is now operational (Lear).
- Ballistic Missile Defense Organization (BMDO) established
- Civilian interests
- November 16, 1974 - The Arecibo message was broadcast to Messier 13, a single time, via frequency modulated radio waves at a ceremony to mark the remodeling of the Arecibo radio telescope in Puerto Rico.
- UFOdna, UFO sightings in 1974
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