Systematic U.S. government study of unidentified flying objects. It was first published on 5 May 1955. It was part of investigation of UFO reports by the United States government. Those involved included Battelle Memorial Institute. It was written by United States Air Force. Its main subject is unidentified flying object.
Before and after
- 16 April 1955Birth of Henri I, Grand Duke of Luxembourg
- from 18 April 1955 to 24 April 1955Asian–African Conference
- 18 April 1955Death of Albert Einstein
- from 18 April 1955 to 24 April 1955The Bandung Conference
- 5 May 1955Publication of Project Blue Book
- from 14 May 1955 to 1 July 1991Founding of Warsaw Pact
- 15 May 1955Austrian State Treaty
- 8 June 1955Birth of Tim Berners-Lee
- 16 June 1955Release of Lady and the Tramp
More in Art, literature & culture
- 29 October 1947Founding of Şalom
- 1954Publication of The Lord of the Rings
- 1958Publication of Exodus
- from 13 August 1961 to 9 November 1989Construction of Berlin Wall
- 1 May 1999Premiere of SpongeBob SquarePants
- from 17 April 2011 to 19 May 2019Premiere of Game of Thrones
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 20th century.