May 22 – Apollo program: Apollo 10's lunar module flies within 15,400 m of the Moon's surface.
May 26 – Apollo program: Apollo 10 returns to Earth after a successful eight-day test of all the components needed for the upcoming first human Moon landing.
July 20 – Apollo program: 20:17 UTC – The human race, represented by Neil Armstrong and Buzz Aldrin, lands on the Moon in the Apollo 11 Lunar Module Eagle. At 02:56 UTC on July 21 (22:56 ET July 20), Armstrong takes the first human step on the Moon's surface. Apollo 11 lifted off for the Moon on July 16 and returns safely on July 24.
July 21 – Luna programme: 2 hours before the Apollo 11 lunar module lifts off from the Moon's surface, the Soviet uncrewed craft Luna 15, launched on July 13 and intended to return samples from the Moon, crashes in Mare Crisium.
May 15 – A teenager known as 'Robert R.' dies in St. Louis, Missouri, of a baffling medical condition. In 1984 it will be identified as the earliest confirmed case of HIV/AIDS in North America. The first strain of the AIDS virus (HIV) has probably migrated to the United States via Haiti.[11]
Late January – Eugene, Oregon, has a record snowfall of 3 feet in 3 days: a pineapple express moves into the region with a shot of cold air, followed by some snow showers.
^"Robert H. Goddard Story". astronauticsnow. Retrieved 2019-07-19.
^Brock, Thomas D.; Freeze, Hudson (August 1969). "Thermus aquaticus gen. n. and sp. n., a nonsporulating extreme thermophile". Journal of Bacteriology. 98 (1). American Society for Microbiology: 289–297. doi:10.1128/jb.98.1.289-297.1969. PMC 249935. PMID 5781580.
^Adams, M. J.; et al. (1969-11-01). "Structure of Rhombohedral 2 Zinc Insulin Crystals". Nature. 224 (5218): 491–495. Bibcode:1969Natur.224..491A. doi:10.1038/224491a0. S2CID 4216737.
^Savio, Jessica (2011-04-01). "Browsing history: A heritage site is being set up in Boelter Hall 3420, the room the first Internet message originated in". Daily Bruin. UCLA. Archived from the original on 2012-01-05. Retrieved 2012-10-29.
^Sutton, Chris (2004-09-02). "Internet Began 35 Years Ago at UCLA with First Message Ever Sent Between Two Computers". UCLA. Archived from the original on 8 March 2008.
^Reilly, Edwin D. (2003). Milestones in Computer Science and Information Technology. Greenwood Press. p. 152. ISBN 1-57356-521-0. starkweather laser-printer.
^Allan, Roy A. (2001). A History of the Personal Computer: the People and the Technology. Allan Publishing. ISBN 0-9689108-0-7. starkweather laser-printer 1971 parc.
^Dennis M. Ritchie, "The Evolution of the Unix Time-sharing System", Communications of the ACM, Vol. 17, 1984, pp. 365-375.
^Dan Murphy (1996) [1989]. "Origins and Development of TOPS-20".
^Yamanaka, A.; Saiki, S.; Tamura, S.; Saito, K. (1969). "Problems in chronic obstructive bronchial diseases, with special reference to diffuse panbronchiolitis". Naika (in Japanese). 23 (3): 442–451. PMID 5783341.
^"AIDS Virus Came to US Via Haiti". Voice of America. 2007-10-30. Retrieved 2011-10-22.
^Carolan, Patrick L. "Sudden Infant Death Syndrome". Medscape. Retrieved 2012-01-26.
^Ostrom, J. H. (1969). "Osteology of Deinonychus antirrhopus, an unusual theropod from the Lower Cretaceous of Montana". Peabody Museum of Natural History Bulletin. 30: 1–165.
^Fastovsky, D.E.; Weishampel, D.B. (2005). "Theropoda I: Nature Red in Tooth and Claw". In Fastovsky, D.E.; Weishampel, D.B. (eds.). The Evolution and Extinction of the Dinosaurs (2nd ed.). Cambridge University Press. pp. 265–299. ISBN 978-0-521-81172-9.
^Schwarz, John H. (2000). "String Theory: The Early Years". arXiv:hep-th/0007118.