April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of death October 21, 1970
The temperature on October 21, 1970 was between 5.6 °C and 11.3 °C and averaged 8.1 °C. There was 2.0 mm of rain during 1.3 hours. There was 4.0 hours of sunshine (39%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 22 » The Boeing 747, the world's first "jumbo jet", enters commercial service for launch customer Pan American Airways with its maiden voyage from John F. Kennedy International Airport to London Heathrow Airport.
March 5 » The Treaty on the Non-Proliferation of Nuclear Weapons goes into effect after ratification by 43 nations.
September 2 » NASA announces the cancellation of two Apollo missions to the Moon, Apollo 15 (the designation is re-used by a later mission), and Apollo 19.
September 11 » The Dawson's Field hijackers release 88 of their hostages. The remaining hostages, mostly Jews and Israeli citizens, are held until September 25.
October 5 » The British Trade Commissioner is kidnapped by members of the FLQ, triggering the October Crisis in Canada.
October 10 » Canada's October Crisis escalates when Quebec's vice-premier is kidnapped by members of the FLQ.
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/I67561.php : accessed October 25, 2026), "Tetje Postma (1897-1970)".
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