The temperature on May 21, 1884 was about 9.9 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 81%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 4 » The Fabian Society is founded in London, United Kingdom.
March 27 » A mob in Cincinnati, Ohio, attacks members of a jury which had returned a verdict of manslaughter in what was seen as a clear case of murder; over the next few days the mob would riot and eventually destroy the courthouse.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » Moses Fleetwood Walker becomes the first black person to play in a professional baseball game in the United States.
June 16 » The first purpose-built roller coaster, LaMarcus Adna Thompson's "Switchback Railway", opens in New York's Coney Island amusement park.
July 3 » Dow Jones & Company publishes its first stock average.
Day of marriage May 7, 1942
The temperature on May 7, 1942 was between 5.5 °C and 18.6 °C and averaged 11.8 °C. There was 11.1 hours of sunshine (73%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
March 31 » World War II: Japanese forces invade Christmas Island, then a British possession.
September 10 » World War II: The British Army carries out an amphibious landing on Madagascar to re-launch Allied offensive operations in the Madagascar Campaign.
September 21 » The Boeing B-29 Superfortress makes its maiden flight.
October 2 » World War II: Ocean Liner RMSQueen Mary accidentally rams and sinks HMSCuracoa, killing 337 crewmen aboard Curacoa.
November 15 » World War II: The Battle of Guadalcanal ends in a decisive Allied victory.
November 30 » World War II: Battle of Tassafaronga; A smaller squadron of Japanese destroyers led by Raizō Tanaka defeats a U.S. cruiser force under Carleton H. Wright.
Day of death June 20, 1972
The temperature on June 20, 1972 was between 7.7 °C and 17.7 °C and averaged 13.2 °C. There was 7.2 hours of sunshine (43%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
January 4 » Rose Heilbron becomes the first female judge to sit at the Old Bailey in London, UK.
February 1 » Kuala Lumpur becomes a city by a royal charter granted by the Yang di-Pertuan Agong of Malaysia.
February 10 » Ras Al Khaimah joins the United Arab Emirates, now making up seven emirates.
September 11 » The San Francisco Bay Area Rapid Transit system begins passenger service.
September 24 » Japan Airlines Flight 472 lands at Juhu Aerodrome instead of Santacruz Airport in Bombay, India.
November 30 » Vietnam War: White House Press Secretary Ron Ziegler tells the press that there will be no more public announcements concerning American troop withdrawals from Vietnam because troop levels are now down to 27,000.
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/I57306.php : accessed October 7, 2026), "Roelfke van der Zaag (1884-1972)".
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