Before they were called UAPs, they were just simply called UFOs. The term UFO was coined by the Air Force in 1952. The recent official shift to UAP (unidentified anomalous phenomena) began to take hold in 2020 when the Pentagon established the Navy-led UAP Task Force to investigate reports. The Pentagon updated its terminology in December 2022 to encompass submerged and trans-medium objects. NASA and other agencies soon followed suit.

What follows is a small list of reported events involving unidentified flying objects.