# UFO Timelines > UFO Timelines: the great moments of ufology in order. Sightings, cases and investigations from 1947 to the UAP era, told from the record with every claim attributed. ## About UFO Timelines (ufotimelines.com) follows the great moments of ufology in order: the sightings, the cases and the official and civilian investigations, from 1947 to the UAP era. It reports what was documented and what was claimed, attributes every claim and keeps established fact apart from testimony. Articles and a weekly podcast, Paper Trail. Part of The Timeline Network. Machine-readable site briefing (llms.txt · llmstxt.org) for https://ufotimelines.com, published for AI and LLM readers. ## Pages - [UFO Timelines | The great moments of ufology, on the record](https://ufotimelines.com/): UFO Timelines: the great moments of ufology in order. Sightings, cases and investigations from 1947 to the UAP era, told from the record with every claim attributed. - [About | UFO Timelines](https://ufotimelines.com/about): About UFO Timelines: the history of ufology from 1947 to the UAP era, reported from the record with claims attributed. - [Articles | UFO Timelines](https://ufotimelines.com/articles): Articles from UFO Timelines: the sightings, cases and investigations of ufology, told from the record. - [Kenneth Arnold, Mount Rainier, and the Birth of the 'Flying Saucer'](https://ufotimelines.com/kenneth-arnold-1947-flying-saucer-origin): On June 24, 1947, pilot Kenneth Arnold reported seeing nine unusual objects near Mount Rainier. His description of their movement quickly captured the press's attention, coining a term that would define an era. - [Lonnie Zamora at Socorro, April 1964: The Case Project Blue Book Left Unidentified](https://ufotimelines.com/lonnie-zamora-socorro-1964-blue-book-unidentified): In 1964, patrolman Lonnie Zamora reported encountering an unknown craft and figures in Socorro, New Mexico. The incident, backed by physical evidence, became one of Project Blue Book's most perplexing and officially 'Unidentified' cases. - [Paper Trail | UFO Timelines podcast](https://ufotimelines.com/podcast): Paper Trail, the UFO Timelines podcast: August and Nell follow one UFO case down its paper trail, every Thursday. - [Project Sign, Grudge and Blue Book: The USAF's Two-Decade UFO Inquiry](https://ufotimelines.com/project-sign-grudge-blue-book-usaf-ufo-investigations): For over two decades, the U.S. Air Force formally investigated unidentified aerial phenomena through Projects Sign, Grudge, and Blue Book. This extensive effort sought to understand what the public was reporting and assess any national security implications, leaving a complex legacy of documented cases. - [Roswell, July 1947: The Press Release, the Retraction, and Five Decades of Retelling](https://ufotimelines.com/roswell-1947-press-release-retraction-retelling): A July 1947 press release from the Roswell Army Air Field reported the recovery of a 'flying disc,' only for it to be retracted swiftly as a weather balloon. This event, initially dismissed, would re-emerge decades later to become one of ufology's most enduring and debated narratives. - [The Washington, D.C. Radar Sightings of July 1952 and the Press Conference That Followed](https://ufotimelines.com/washington-dc-radar-sightings-1952): In July 1952, unexplained radar targets appeared over Washington D.C., leading to scrambles of Air Force jets and an unprecedented Pentagon press conference. This event brought the UFO phenomenon directly to national attention. --- ## How this was generated This document is auto-generated by **Luminal CMS — The Vault** from the site's own content and any connected sources, published for AI/LLM readers. - **Sources:** 9 pages · curated About - **Generated:** 2026-11-10 UTC · refreshed weekly - **Format:** llmstxt.org (`llms.txt` = index · `llms-full.txt` = full briefing)