On February 4, 1977, at Broad Haven Primary School in Pembrokeshire, Wales, a group of 14 children — mainly 10-year-old boys — reported seeing a shiny, yellow cigar-shaped UFO on the ground in fields behind their school during their lunch break.

This case matters because it is a documented encounter event whose object identity remains unresolved.
Documented
On February 4, 1977, at Broad Haven Primary School in Pembrokeshire, Wales, a group of 14 children — mainly 10-year-old boys — reported seeing a shiny, yellow cigar-shaped UFO on the ground in fields behind their school during their lunch break.
Debated
The identity of the object
Debated
The adequacy of the conventional explanation
Unverified
Extraterrestrial origin
Unverified
Any claim stronger than the record supports
Sources are kept in separate layers: official and contemporary material is documented; secondary UFO literature is treated as debated, not as primary evidence.
Secondary / debated material.
Documented source.
Documented source.