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UAP LEDGER

25 events on record

UAP Historical Timeline

An interactive timeline of UAP history, from the 1942 Battle of Los Angeles and 1947 Roswell to the 2023 congressional whistleblower hearings.

Decade
Min. significance

  1. Battle of Los Angeles

    U.S. Army fires over 1,400 anti-aircraft rounds at unidentified objects over Los Angeles.

  2. Roswell Incident

    Roswell Army Air Field announces recovery of a "flying disc," then retracts it the same day.

  3. Project Sign Established

    The U.S. Air Force launches its first official UFO investigation program.

  4. Project Blue Book Begins

    The Air Force begins its longest-running UFO study, ultimately reviewing 12,618 cases.

  5. Malmstrom AFB Nuclear Incident

    Ten Minuteman ICBMs reportedly go offline during a UAP sighting in Montana.

  6. Condon Report Released

    The USAF-funded study recommends against further scientific UFO investigation.

  7. Project Blue Book Closes

    The Air Force terminates Project Blue Book; 701 cases remain unexplained.

  8. Rendlesham Forest Incident

    USAF personnel report a landed craft near RAF Bentwaters in England.

  9. JAL Flight 1628 Encounter

    A Japan Airlines 747 is followed by a massive object over Alaska for ~50 minutes.

  10. Phoenix Lights

    Thousands witness lights over Arizona, including Governor Fife Symington.

  11. USS Nimitz Tic Tac Encounter

    Navy pilots Fravor and Dietrich visually encounter a radar-confirmed Tic Tac UAP.

  12. O'Hare Airport Sighting

    United Airlines staff report a disc hovering over a Chicago O’Hare gate.

  13. AATIP Funded

    The DoD’s Advanced Aerospace Threat Identification Program begins with a Senate earmark.

  14. Aguadilla Customs UAP

    A CBP thermal video records a trans-medium object over Puerto Rico.

  15. Gimbal & Go Fast Recorded

    Navy F/A-18s capture the Gimbal and Go Fast UAP off the Atlantic coast.

  16. AATIP Revealed

    The New York Times reveals AATIP and publishes Navy UAP videos.

  17. Pentagon Releases UAP Videos

    The DoD officially declassifies FLIR1, GIMBAL, and GOFAST.

  18. UAP Task Force Established

    The Department of the Navy stands up the UAP Task Force.

  19. 2021 Preliminary Assessment

    ODNI reports 144 UAP cases, explaining only one.

  20. First Open UAP Hearing in 54 Years

    The House Intelligence Committee holds an open UAP hearing.

  21. AARO Established

    The Pentagon creates the All-domain Anomaly Resolution Office.

  22. Senate AARO Hearing

    AARO Director Sean Kirkpatrick testifies to the Senate Armed Services subcommittee.

  23. Grusch Whistleblower Hearing

    Grusch, Graves, and Fravor testify under oath before the House Oversight Committee.

  24. NASA UAP Report Released

    NASA’s independent study urges rigorous new UAP data collection.

  25. AARO Historical Record Report

    AARO finds no evidence of alien technology or crash-retrieval programs.