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- ...is named after [[Nikola Tesla]], who was awarded {{US patent|1329559}} in 1920 for its invention. The patent application describes the invention as follow [[Category:1920 introductions]] ...11 KB (1,539 words) - 20:21, 11 December 2024
- ...st=Eddington |journal=The Scientific Monthly |volume=11 |issue=4 |date=Oct 1920 |pages=297–303 |doi=10.1126/science.52.1341.233 |jstor=6491|pmid=17747682 | [[Category:1910 introductions]] ...23 KB (3,294 words) - 02:42, 18 July 2024
- ...</ref> to James T. Lewis<ref name=":3" /> and Pearlean Harvey.<ref>Year: ''1920''; Census Place: ''Roanoke, Charlotte, Virginia''; Roll: ''T625_1882''; Pag ...European classics and [[negro spiritual]]s, which was one of his earliest introductions to arts specific to [[African-American culture|American black culture]]. Un ...35 KB (5,197 words) - 21:10, 24 November 2024
- ...] and [[F. W. Jordan]].<ref>{{cite patent|country=GB|number=148582|pubdate=1920-08-05|title=Improvements in ionic relays|inventor1-last=Eccles|inventor1-fi [[Category:Computer-related introductions in 1918]] ...57 KB (8,881 words) - 18:46, 25 February 2025
- * {{Timeline-event |date={{Start date|1920}}|end_date={{End date|1921}}|event=[[Emil Post]] explores the halting probl [[Category:1936 introductions]] ...53 KB (7,812 words) - 09:12, 21 February 2025
- ...ek early in 1724 and 1744.<ref>{{citation |last=Lamont |first=Roscoe |year=1920 |title=The reform of the Julian calendar |url=http://adsbit.harvard.edu//fu ...PA.....28...18L |date=30 December 2015 }}, ''Popular Astronomy'' '''28''' (1920) 18–32. Decree of Peter the Great is on pp. 23–24.</ref>||1918 ...73 KB (10,495 words) - 06:49, 14 February 2025