“While UFO activity certainly didn’t stop following the wave of sightings in the second half of 1947, it did slow down somewhat, even though 1948 had some of the most intriguing UFO encounters on record.
However, by the time the fifties were but days old, there was a sudden and dramatic increase in UFO sightings. And what’s more, these sightings continued right through the year at an (at the time) unprecedented pace. And while these sightings were occurring worldwide (indeed we have examined several of them in detail previously), the majority of activity appeared to unfold over the United States.” credit Marcus Lowth / & The UFO Files Group F.B. / https://www.ufoinsight.com/the-1950-ufo-wave-a-case-study/