The temperature on November 1, 1889 was about 7.9 °C. There was 2 mm of rain. The air pressure was 16 kgf/m2 and came mainly from the south. The airpressure was 76 cm mercury. The atmospheric humidity was 97%. Source: KNMI
January 22 » Columbia Phonograph is formed in Washington, D.C.
February 11 » Meiji Constitution of Japan is adopted.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 11 » The State of Washington is admitted as the 42nd state of the United States.
Day of death December 20, 1959
The temperature on December 20, 1959 was between 7.0 °C and 11.4 °C and averaged 9.5 °C. There was 3.4 mm of rain during 2.6 hours. The heavily clouded was. The average windspeed was 6 Bft (strong wind) and was prevailing from the south-southwest. Source: KNMI
February 28 » Discoverer 1, an American spy satellite that is the first object intended to achieve a polar orbit, is launched but fails to achieve orbit.
April 8 » A team of computer manufacturers, users, and university people led by Grace Hopper meets to discuss the creation of a new programming language that would be called COBOL.
May 16 » The Triton Fountain in Valletta, Malta is turned on for the first time.
July 21 » NSSavannah, the first nuclear-powered cargo-passenger ship, is launched as a showcase for Dwight D. Eisenhower's "Atoms for Peace" initiative.
July 24 » At the opening of the American National Exhibition in Moscow, U.S. Vice President Richard Nixon and Soviet Premier Nikita Khrushchev have a "Kitchen Debate".
November 21 » American disc jockey Alan Freed, who had popularized the term "rock and roll" and music of that style, is fired from WABC-AM radio over allegations he had participated in the payola scandal.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I92382.php : accessed October 17, 2026), "Johannes van Helvoirt (1889-1959)".
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