Dates
Below is a condensed list of notable dates in exo studies – these include a few of the more notable alleged UFO crashes, compelling multi-witness UFO sightings, important books, articles, and reports being published, government declassifications of UFO files, and other historic moments over the last century.
- US President Donald Trump signs into law the FY 2021 Intelligence Authorization Act, which contains a provision titled “Advanced Aerial Threats” that requires the Pentagon’s UAP Task Force at the Office of Naval Intelligence has 180 days to produce a comprehensive “all-source” unclassified report to the Senate Intelligence Committee on how factions within the USG collects, analyzes, and manages data related to UAPs – December 28, 2020
- Luis Elizondo announces on Coast to Coast that he, Chris Mellon, and Steve Justice are all leaving TTSA – December 20, 2020
- The Guardian reports that the Breakthrough Listen project detected this autumn (from archival data gathered last year) a mysterious radio transmission signal from Proxima Centauri (4.2 light years away), which could be the first artificial signal from an exoplanet – December 18, 2020
- Former CIA Director John Brennan appeared on Tyler Cowen’s podcast and discussed his views on UFOs stating that we should remain open-minded and that they be extraterrestrial in nature – December 16, 2020
- Bombshell Interview with professor Haim Eshed, Former head of Israel’s Defense Ministry’s space directorate, with claims about ETs and humanity is published in Hebrew – Friday December 4th in Israel’s Yediot Aharonot newspaper and then parts were translated and published on Tuesday December 8th by the Jerusalem Post
- Tim McMillian publishes “Leaked photo surfaces of purported unidentified ariel phenomena” on his website www.thedebrief.org, which presents a photo that was part of one of the classified intelligence reports presented the day before on the same site – December 3, 2020
- Tim McMillian publishes “’Fast movers’ and transmedium vehicles – the Pentagon’s Unidentified Aerial Phenomena Task Force” on his new website www.thedebrief.org, which details information pertaining to two classified reports from the UAPTF on UFOs and unidentified submerged objects (OSUs) circulating within the intelligence community – December 2, 2020
- A 3-meter metal triangular monolith was discovered in a remote area of Utah thereby kicking off a global phenomenon of monoliths appearing around the world – November 18, 2020
- The Hubble Telescope reveals that the observable universe contains 10x more galaxies than previously thought – October 13, 2020
- The Phenomenon – the UFO documentary (100 min) by James Fox is released – October 6, 2020
- A team of astronomers and geobiologists from the US and Germany identify 24 “superhabitable” exoplanets – that likely contain conditions even more suitable for life than Earth (i.e., they are larger, warmer, wetter) – October 5, 2020
- The US Defense Department/Pentagon announces it has created the Unidentified Aerial Phenomena Task Force (UAPTF) an agency designed to track potential UFOs – August 4, 2020
- Chris Mellon appears on CNN and says that the topic of crash retrievals should be taken seriously – August 1, 2020
- NASA Launches Perseverance Mars rover – July 30, 2020
- The New York Times publishes “Do We Believe in U.F.O.s? That’s the Wrong Question” by Ralph Blumenthal and Leslie Kean – July 28, 2020
- An article in Scientific American by Ravi Kopparapu and Jacob Haqq-Misra calls for interdisciplinary teams of scientists to study UAPs – July 27, 2020
- Jay @ Project Unity interviews Leslie Kean and Ralph Blumenthal about their recent NYT article – July 25, 2020
- The New York Times publishes “No longer in Shadows, Pentagon’s U.F.O. Unit Will Make Some Findings Public” by Ralph Blumenthal and Leslie Kean wherein they discuss UFO crash retrievals as “off-world vehicles not made on this earth.” – July 23, 2020
- Florida Senator Marco Rubio – serving as acting chair of the Senate Intelligence Committee submits a bill that includes a requirement that the multi-agency Unidentified Aerial Phenomenon task force housed in Naval Intelligence would have to publish a public report on UAP data collection and create a centralized process for managing UAP data – July 17, 2020
- George Knapp releases three more of the 38 Defense Intelligence Reference Documents commissioned by the AATIP program (to date 10 have been released) – July 16, 2020
- The History Channel’s Unidentified second season launches – July 11, 2020
- US President Donald Trump interviewed by his son Donald Trump Jr and was asked about Roswell and the possible declassification of documents – June 18, 2020
- A new study published in The Astrophysical Journal indicates that there is a minimum of 36 intelligent civilizations within our Milky Way galaxy – June 15, 2020
- Space X ushers in new era of spaceflight by launching 2 astronauts into space from US soil marking the first time in history that a commercial aerospace company has carried humans into Earth’s orbit – May 30, 2020
- Eric Davis gives a 14 min interview on The New York Post’s The Basement Office series (on Youtube) confirming his ongoing involvement with “AATIP” up to the present moment – this directly contradicts the Pentagon’s claims that this program was shutdown and no similar program remains in existence – May 27, 2020
- US Navy releases 8 UFO “hazard reports” – May 12, 2020
- Alex Wendt gives stunning interview with Sean Illing in Vox – May 8, 2020
- US Pentagon verifies the authenticity of the three UFO videos released in 2017/2018 – April 27, 2020
- Alex Wendt gives TEDx talk: Wanted: A Science of UFOs – February 4, 2020
- US Navy admits they have additional UFO footage and briefing slides that could “cause grave damage” to national security if released – January 10, 2020
2020s
- US President Donald Trump signs into existence the newest branch of military – the Space Force – December 20, 2019
- Chris Rutkowski donates his private collection of 30K Canadian UFO documents to the University of Manitoba – December 14, 2019
- The SCU Review publishes its first quarterly newsletter – December 16, 2019
- US Navy acknowledges it has additional UAP “Top Secret” briefing slides and a “Secret” video that if released would cause “exceptionally grave damage to the National Security of the United States.” – December 9, 2019
- The US Army partners with TTSA to explore military applications of metamaterials for technologies such as active camouflage and beamed energy propulsion – October 17, 2019
- The US Navy publishes patent for Salvatore Cezar Pais’ “compact fusion reactor” – September 26, 2019
- John Greenewald of the Black Vault reports that the US Navy confirms the authenticity of three UAP videos leaked in December 2017 and March 2018 – September 11, 2019
- TTSA metamaterial acquisition – July 25, 2019
- Joe Rogan interviews Bob Lazar about his experience at S4 garnering over 6M views in the first month of posting – June 20th, 2019
- US congress receiving classified UFO briefing – June 19, 2019
- The US Navy receives patent for Salvatore Cezar Pais’ “high frequency gravitational wave generator” – June 18, 2019
- Table salt discovered in the ocean on Jupiter’s moon Europa strengthening the hypothesis that it may harbor life – June 12, 2019
- Admiral Wilson 15-page document leak – June 8, 2019
- History Channel launches Unidentified series – May 31, 2019
- Luis Elizondo admits in an interview with Tucker Carlson on FOX that the US Government has debris from ET craft – May 31, 2019
- Washington Post article “UFOs exist and everyone needs to adjust to that fact” – May 28, 2019
- New York Times articles on 5 Navy pilots – May 26, 2019
- New York Post article confirms the Pentagon officially acknowledges the AATIP program – May 22, 2019
- US Navy drafts new UAP reporting guidelines – April 23, 2019
- George Knapp interviews Harry Reid who calls for Congressional Hearings on UFOs on channel 8 News NOW Las Vegas – January 31, 2019
- Defense Intelligence Agency (DIA) releases via FOIA the list of 38 research titles funded by AATIP – January 16, 2019
- The US Navy receives patent for Salvatore Cezar Pais’ “hybrid aerospace underwater craft” – December 4, 2018
- The US Navy receives patent for Salvatore Cezar Pais’ “electromagnetic field generator” – November 11, 2018
- Oumuamua – “alien probe” article published by Harvard scientist – November 8, 2018
- The Five Continents International UFO Forum launched in Moscow Russia representing 35 countries across 5 continents – October 15-17, 2018
- Scientists from the Italian Space Agency detected a subglacial lake on Mars – the first evidence for a stable body of liquid water on the planet – July 2018
- George Knapp releases a version of the 38 reports created for AATIP – July 2018
- The Unusual Aerial Phenomena Study Group (UAPSG) initiated an international survey among UFO investigators and scholars – July 2018
- President Trump announces the formation of Space Force a new branch of military – June 18, 2018
- Hal Puthoff presents on metamaterials and the DoD’s UAP program at The Society for Scientific Exploration and the International Remote Viewing Association in Las Vegas Nevada – June 8, 2018
- TTSA releases the USS Roosevelt “Go Fast” video (2:04 clip) of UAP shot in 2015 off the US East Coast near Florida on Youtube – March 9, 2018
- UKs Ministry of Defense (MoD) releases the remaining 3 of its classified UFO documents through National Archives – January 1, 2018
- NYT releases the USS Roosevelt “Gimbal” video (0:51 of the full 1:53 clip) of UAP shot in 2015 off the US East Coast near Florida in their article “Glowing Auras and ‘Black Money’: The Pentagon’s Mysterious U.F.O. Program”– December 16, 2017
- NYT releases the USS Nimitz “Flir1” video (1:16 of the full 2:45 clip) of “tic tack” UAP shot in 2004 off coast of San Diego in their article “2 Navy Airmen and an Object That ‘Accelerated Like Nothing I’ve Ever Seen’”– December 16, 2017
- Glocalities conducts the largest global survey of belief in UFOs and extraterrestrials – engaging 26K respondents in 15 languages across 24 countries – with results showing that nearly 50% of humanity believes in “intelligent alien civilizations in the universe” –Dec 2015 – Feb 2016 (survey conducted) & results released December 8, 2017
- To The Stars Academy (TTSA) launched by Tom DeLonge via Facebook video – Oct 11, 2017
- UKs Ministry of Defense (MoD) releases 15 of its remaining 18 classified UFO documents through National Archives – June 23, 2017
- Robert Bigelow “I don’t give a damn!” interview on 60 Minutes – May 28, 2017
- Trappist-1 system of 7 earth-like planets discovered – February 22, 2017
- The CEFAA – the Chilean government’s agency dedicated to the study of UFOs – releases a 9-minute video taken on November 11, 2014 by two Navy officers in a helicopter – January 5, 2017
- Wikileaks data dump with Podesta and Delong emails – October 7, 2016
- Hillary Clinton “rebrands” UFOs as UAPs on Jimmy Kimmel Live! – March 24, 2016
- 4-hour interview on Coast-to-Coast between George Knapp and Tom Delong – March 20, 2016
- Hillary Clinton promises the Conway Daily Sunto investigate UFOs – December 31, 2015
- The Breakthrough Initiatives (e.g., Listen, Message, Starshot, Watch, and Enceladus) to discover extraterrestrial life were founded by Julia and Yuri Milner and in colaboration with Stephen Hawking and Mark Zuckerberg – July 20, 2015
- Edgar Mitchell et al found FREE and soon launch their groundbreaking multi-year contactee research – July 15, 2015
- Douglas Vakoch quits SETI in 2014 after the board votes against sending messages into space and founds Messaging Extraterrestrial Intelligence (METI) International – July 2015
- NASA’s Chief Scientist Ellen Stofan declares that signs of “life beyond Earth” will be found by 2025 and definitive proof “within 20-30 years” – April 7, 2015
- John Podesta “UFO Disclosure” Tweet – February 12, 2015
- East Coast “GO FAST” encounters – 2014 – 2015
- Paradigm Research Group sends complete DVD set of Citizens Hearing on Disclosure to all members the US Congress – November 5, 2014
- NASA and the Library of Congress host an astrobiology symposium “Preparing for Discovery: A Rational Approach to the Implications of Finding Microbial, Complex or Intelligent Life Beyond Earth” – September 18-19, 2014
- Ocean on Saturn’s icy moon Enceladus first detected by NASA’s Cassini in 2005 confirmed – April 3, 2014
- NASAs Kepler mission announces the discovery of 715 new worlds – nearly doubling the number of exoplanets on record from 961 To nearly 1700 – February 19, 2014
- UKs Ministry of Defense (MoD) releases most of its classified UFO documents through National Archives – June, 2013
- Aguadilla, Puerto Rico UFO encounter – April 25, 2013
- Citizens Hearing on Disclosure – 5 days, 30 hrs. testimony, 42 witnesses from 10 countries – April 29 – May 3, 2013
- David Paulides simultaneously publishes Missing 411: Western United States & Canada and Missing 411: Eastern United States the first two books in the Missing 411 series – April 20, 2012
- New Zealand Releases UFO files – December 23, 2010
- The 319th Strategic Missile Squadron temporarily lost – due to UFO interference – their ability to communicate with 50 Intercontinental Ballistic Missiles (ICBMs) at F.E. Warren Air Force Base in Cheyenne Wyoming – October 23, 2010
- CNN streams live the UFOs and Nukes Press Conference in Washington DC lead by UFO researcher Robert Hastings and former Air Force Capt. Robert Salas, 7 US Airforce veterans testified to UFO incursions at nuclear weapons sites during the Cold War era – September 28, 2010
- Dana Priest and William Arkin publish 3-part “Top Secret America” article in The Washington Post – July 19, 2010
- Stan Gordon’s publishes Silent Invasion: UFOs and Bigfoot – 2010
- Leslie Kean publishes UFOs: General, Pilots, and Government Officials go on the Record and it becomes a New York Times Bestseller – 2010
2010s
- British Ministry of Defense closes its special UFO department – December 1, 2009
- Vatican Observatory hosts a five-day conference with 30 scientists including non-Catholics on the philosophical and theological implications of extraterrestrial life and astrobiology – November 5 – 10, 2009
- Russian Navy declassifies its records of Cold War UFO/USO sightings – July 24, 2009
- Brazil releases UFO files – May 4, 2009
- Pilot of Ancient Aliens airs on the History Channel – March 8, 2009
- Canada Releases UFO files – February 15, 2009
- NASAs Kepler mission launched – 2009
- Denmark Releases UFO files – January 9, 2009
- Avatar (movie) – the highest grossing film in history – December 10, 2009
- José Gabriel Funes the Vatican’s chief astronomer and head of the Vatican Observatory declares in an interview (“The extraterrestrial is my brother”) that there is no conflict between Catholic faith and the existence of advanced extraterrestrials stating makes the statement “Just as there is a multiplicity of creatures on Earth, there can be other beings, even intelligent, created by God. This is not in contrast with our faith because we can’t put limits on God’s creative freedom” – May 13, 2008
- Alex Wendt and Raymond Duvall publish “Sovereignty and the UFO” in the academic journal Political Theory Vol. 35 No. 4 – May 6, 2008
- Bigelow Aerospace Advanced Space Studies (BAASS) established – January 28, 2008
- The Stephenville UFO sightings – January 8, 2008
- Advanced Aerospace Threat Identification Program (AATIP) the secret $22M Pentagon – June 2007 – 2012
- French government opens its 1600+ UFO files – March 22, 2007
- A person using the pseudonym “thefinaltheory” posted a “F4” video clip (later to be known as “Flir1” and (re)released by TTSA and NYT on Dec 16/17, 2017) on a thread on the message board Above Top Secret with the heading “Observations of an Actual UFO” – February 3, 2007
- O’Hare International Airport UFO encounter – Nov 7, 2006
- Paul Hellyer Canada’s former Defense Minister admits UFOs exist – September 25, 2005
- Ecuador’s UFO department Comision Ecuatoriana Para La Investigacion del Fenomeno Ovni (CEIFO) created – April 5, 2005
- ABC airs “Peter Jennings Reporting: UFOs – Seeing is Believing” a two-hour primetime special report on UFOs – February 24, 2005
- Vatican hosts discussions on the possibilities of extraterrestrial life – 2005
- The USS Nimitz Tic-Tac encounter – Nov 14, 2004
- Tinley Park Lights – August 21 & October 31, 2004
- Elon Musk founds SpaceX – 2002
- Gary McKinnon hacks into military and NASA computer systems searching for UFO and ET evidence – February 2001-March 2002
- Disclosure Project @ National Press Club – May 9, 2001
- New Jersey Turnpike Lights – July 14, 2001
- World UFO Day established on July 2nd (commemorating the Roswell Incident) and replacing the previous day of June 24th (commemorating Ken Arnold’s UFO sighting at Mt. Rainer) – July 2, 2001
- The Catholic Vatican theologian Corrado Balducci publishes a statement UFOs and Extraterrestrials – A Problem for the Church? – 2001
- Bill Sweetman publishes article on black budgets in Jane’s Information Group – January 5, 2000
2000s
- The French COMETA Report – July 16, 1999
- Committee for the study of Anomalous Aerial Phenomena (CEFAA) founded in Chile – October 3, 1997
- Phoenix Lights – March 13 1997
- Stephen Bassett launches Paradigm Research Group (PRG) – 1996
- John Greenewald launches The Black Vault which currently houses over 2M pages of declassified documents related to UFOs and associated phenomena – 1996
- The first confirmed exoplanet – 51 Pegasi b aka “Dimidium” – was discovered by Michel Mayor and Didier Queloz – October 6, 1995
- Ariel primary school UFO encounter with 60 children in Ruwa Zimbabwe – September 16, 1994
- Abduction published by John Mack & Harvard investigation – 1994
- The Rockefeller UFO Disclosure Initiative to the Clinton White House – 1994
- National Institute for Discovery Science (NIDS) researches Skinwalker Ranch – 1994–2004
- The Disclosure Project nonprofit founded by Steven Greer – 1993
- The Abduction Study Conference @ MIT – June 13-17, 1992
- Roper Poll indicates that as many as 1 out of every 50 American’s have abducted – 1991
1990s
- The Belgium UFO Wave – 1989-1990
- Bill Moore announces at the annual MUFON conference that he has been acting as an undercover government agent within the UFO community – July 2, 1989
- George Knapp interviews “Dennis” (Bob Lazar) live about Area 51 on Las Vegas TV station KLAS – May 15, 1989
- President Ronald Reagan addresses the 42nd session of the United Nations General Assembly and gives his “alien threat from outside this world” speech – September 21, 1987
- Intruders published by Budd Hopkins – March 12, 1987
- Communion published by Whitley Strieber – February 25, 1987
- Hudson Valley UFO sightings – 1982 – 1986
- Japan Air Lines flight 1628 UFO incident – November 17, 1986
- Whitney Strieber’s first abduction experience at his cabin in upper state NY – December 26, 1985
- The SETI Institute is formed to investigate life in the universe – November 20, 1984
- Indian Point Reactor Incident – June 14 & July 24, 1984
- E. T. The Extra-Terrestrial (movie) – 1982
- Trans-en-Provence UFO incident – January 8, 1981
- Budd Hopkins publishes Missing Time – 1981
- Harley Rutledge publishes Project Identification – 1981
- Cash-Landrum UFO incident in Dayton, Texas December 29, 1980
- Rendlesham Forest UFO Incident – December 26-28, 1980
- Linda Molten Howe premiers her Emmy winning Strange Harvest documentary – 1980
1980s
- Prime Minister Gairy of Grenada is ousted from his country due to a coup d’etat thereby ending the UN’s UFO initiative – March 1979
- Paul Bennewitz starts intercepting electronic communications and filming UFOs near Kirtland AFB in Albuquerque, New Mexico – 1979
- The US Army’s remote viewing Stargate project established and ran – 1978-1995
- The Grenada UN initiative to establish a global UFO research office is formalized – December 18, 1978
- UFO Hearing at the Special Political Committee at the UN with Dr. Allen Hynek speaking about UFOs to the United Nations General Assembly representing himself, Jacque Vallee and Claude Poher – November 27, 1978
- Prime Minister Gairy of Grenada delivers a speech at the 33rd Session of the UN General Assembly calling for the UN to research UFOs – October 12, 1978
- Close Encounters of the Third Kind (movie) released – November 16, 1977
- The Golden Record with sounds and images from Earth is sent into space via the Voyager in an attempt to communicate with extraterrestrials – September 5, 1977
- The first International UFO Congress held in Chicago, IL – June 1977
- Star Wars (movie) – May 25, 1977
- Tehran UFO incident – September 19, 1976
- Travis Walton is abducted – November 5 -10, 1975
- John Keel publishes The Mothman Prophecies – January 28, 1975
- David Jacobs publishes The UFO Controversy in America– 1975
- UFOs: Past, Present, and Future documentary premiers – July 31, 1974
- National UFO Reporting Center (NUFORC) founded – 1974
- Allen Hynek founds the Center for UFO Studies (CUFOS) – October 1973
- Allen Hynek publishes The UFO Experience: A Scientific Experience – 1972
- Famous UFO aerial photo over Costa Rica near Lake Cote taken by Costa Rican National Geographic Institute – September 4, 1971
- John Keel publishes Operation Trojan Horse – 1970
1970s
- Project Blue Book is dissolved – December 17, 1969
- Apollo 11-17 human moon landing – July 20, 1969 – December 14, 1972
- Mutual UFO Network (MUFON) founded – May 31, 1969
- Jacque Vallee publishes Passport to Mongolia – 1969
- Jimmy Carter sees a UFO in Georgia – January 6, 1969
- The Condon Report (The Scientific Study of Unidentified Flying Objects) @ 1,465 pages is completed – November 1968 and then released in book form to the general public in January 1969
- The US House of Representatives’ Committee on Science and Astronautics convened a one-day Symposium on Unidentified Flying Objects with six scientists presenting their views including Dr. J. Allen Hynek, James e. McDonald, and Dr. Carl Sagan – July 29, 1968
- John G. Fuller publishes an article in Look magazine based on the “Trick” memo from Robert Low to James Archer and Thurston Manning -this memo was leaked to the magazine and undercut the view that the Condon Committee was an unbiased scientific investigation – May 24, 1968
- 2001: A Space Odyssey (movie) – April 3, 1968
- First documented animal mutilation case (Lady/Snippy the horse) occurs in the San Luis Valley, Colorado – September 9 or 27 (both dates are listed in different places), 1967
- Shag Harbour, Nova Scotia incident – October 4, 1967
- Falcon Lake UFO incident – May 20, 1967
- President Dwight Eisenhower delivers Military-industrial complex warning – Jan 17, 1967
- Westall High School UFO incident in Melbourne Australia with over 200 students and staff – April 6, 1966
- Allen Hynek makes his infamous “swamp gas” comment at a press conference in Ohio – March 26, 1966
- Star Trek premiers on NBC (TV) – September 8, 1966
- The Congress of the United States conducted open hearings on UFOs – April 5, 1966
- Near Big Sur, CA the 1369th Photographic Squadron from Vandernberg Air Force Base filmed a UFO circling an Atlas F Rocket and then shooting 4 beams at it causing it to fall out of the sky – September 15, 1964
- Lonnie Zamora UFO Sighting in Socorro, New Mexico – April 24, 1964
- Astrophysicist Frank Drake writes his famous “Drake equation” – Fall 1961
- Barney & Betty Hill abduction – September 19-20, 1961
- The Brookings Report (Proposed Studies on The Implications of Peaceful Space Activities for Human Affairs) @ 190 pages is issued by NASA and the Brookings Institute describing in part potential devastating social implications and responses to the discovery of extraterrestrial life – December 1, 1960
- Project Ozma – the first SETI effort – commences when astronomer Frank Drake points an 85-foot Howard Tatel telescope tuned to the 21 cm (1420 Mhz) line of neutral hydrogen at the star Tau Ceti – April 8, 1960
1960s
- Carl Jung publishes Flying Saucers – 1959
- Levelland UFO case – November 2-3, 1957
- Antonio Vilas Boas (a Brazilian farmer) abducted – October 16, 1957
- The Soviet Union successfully launched Sputnik the first artificial satellite to be put into orbit – October 4, 1957
- Aerial Phenomena Research Organization (APRO) founded – January 1957
- The alleged abduction and mutilation of AF sergeant Jonathan P. Lovette near Holloman AFB (This event is the focus of Project Grudge Report No. 13 which has not been declassified yet. Reports 1-12 and 14 have been) – March 1956
- Edward Ruppelt publishes The Report on Flying Objects – 1956
- The USG allegedly mastered gravity control – October, 1954
- Kingman, Arizona UFO crash retrieval – May 21, 1953
- Robertson Panel met – January 14 – 17, 1953
- George Adamski makes his alleged first contact with the Venusian Orthon in the Colorado Desert in California and ushers in the 1950s era of contactees – November 20, 1952
- USG creates the National Security Agency (NSA) – November 4, 1952
- The Washington DC UFO flyover occurring over two consecutive weekends – July 19-20 & 26-27, 1952
- Life magazine publishes its pro-flying saucer article “There is a Case for Interplanetary Saucers” showcasing 10 UFO incidents in detail and evaluating each one – April 7, 1952
- Project Blue Book – 1952–1970
- Lubbock Lights – August 25, 1951
- McMinnville, Oregon UFO photographs – 1950
1950s
- Project Sign Report issued which claimed UFOs were of extraterrestrial origin (all copies of the report were ordered to be destroyed by General Hoyt Vandenburg – thus the general public has never seen it) – September, 1949
- Captain Thomas F. Mantell of the Kentucky Air National Guard died in a crash of his P-51 Mustang fighter during a pursuit of a UFO – January 7, 1948
- First UFO sighting at a US nuclear facility occurs at Los Alamos Atomic Lab – December, 1948
- Aztec, New Mexico UFO crash retrieval – March 25, 1948
- Project Grudge – 1948-51
- Project Sign – 1947-48
- Alleged creation of the MJ-12 group by US President Harry S. Truman via executive order – September 24, 1947
- The National Security Act signed into law creating the CIA, DoD, the US Air Force, and restructuring other aspects of the US military – July 26, 1947
- Roswell UFO crash retrieval – July 5-8, 1947
- Kenneth Arnold UFO sighting – June 24, 1947
- The first atomic bomb was secretly tested by the Los Alamos Atomic Lab in the desert near Alamogordo – July 16, 1945
- World War II ends – May 8, 1945
- The Shaver mystery is kicked off with the article “I remember Lemuria” in Amazing Stories – March 1945
- Battle over LA – February 24-25, 1942
- Cape Girardeau, Missouri UFO crash retrieval – April 12, 1941
1940s
- Orson Wells broadcasts The War of the Worlds creating a widespread public panic – October 30, 1938
1920s
- Charles Fort publishes Book of the Damned – 1919
1900s
- Aurora, Texas UFO crash – April 17, 1897
- American airship sightings – November 18, 1896 – May 1897