Två bra genomgångar av UFO-incidenter, en från England och fem stycken från Ryssland. Fallet med de "tyska fantomballongerna" var intressant tycker jag, även i USA rapporterades det om mystiska luftskepp på 1800-talet, finns kanske en koppling där.
The Pentyrch UFO Incident
https://www.youtube.com/watch?v=VJTGpxOqzjA
5 Sinister Extraterrestrial Encounters Reported by Russian Military
https://www.youtube.com/watch?v=j4za7ZsS3WQ
https://en.wikipedia.org/wiki/Mystery_airship
Not only were [the mystery airships] bigger, faster and more robust than anything then produced by the aviators of the world; they seemed to be able to fly enormous distances, and some were equipped with giant wings... The 1896–1897 airship wave is probably the best investigated of all historical anomalies. The files of almost 1,500 newspapers from across the United States have been combed for reports, an astonishing feat of research. The general conclusion of investigators was that a considerable number of the simpler sightings were misidentification of planets and stars, and a large number of the more complex the result of hoaxes and practical jokes. A small residuum remains perplexing.