1955: Jessup publishes pioneering UFO book

Publication Details In March 1955, Morris K. Jessup, a technician and businessman, published The Case for the UFO through Citadel Press. This marked the initial use of the official US Air Force designation "UFO" over earlier terms like flying saucer.

Key Content and Speculations Jessup delved into unconventional explanations for Fortean phenomena, suggesting advanced levitation explained massive ancient megaliths. He proposed prehistoric experiments with aerial and even interstellar travel. The period 1877–1887 was labeled an extraordinary era of odd celestial sightings by astronomers and bizarre atmospheric deposits noted by weather experts.

Broader Implications Mysterious vanishings of maritime personnel were interpreted as potential interests from extraterrestrial observers regarding human history since supposed ancient placement on Earth. The work's innovative hypotheses influenced later ufology, predating similar ancient astronaut concepts, and gained notoriety through associations like the Philadelphia Experiment annotations. Significance lies in mainstreaming speculative UFO discourse with astronomical and archaeological ties.