The temperature on April 21, 1911 was between 1.3 °C and 15.1 °C and averaged 9.7 °C. There was 4.6 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
Day of death March 9, 1993
The temperature on March 9, 1993 was between -1.3 °C and 8.3 °C and averaged 3.2 °C. There was 10.4 hours of sunshine (91%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
April 8 » The Republic of North Macedonia joins the United Nations.
August 31 » Russia completes removing its troops from Lithuania.
September 14 » Lufthansa Flight 2904, an Airbus A320, crashes into an embankment after overshooting the runway at Okęcie International Airport (now Warsaw Chopin Airport), killing two people.
September 27 » The Sukhumi massacre takes place in Abkhazia.
November 1 » The Maastricht Treaty takes effect, formally establishing the European Union.
November 20 » Macedonia's deadliest aviation disaster occurs Avioimpex Flight 110, a Yakovlev Yak-42 crashes near Ohrid killing all 116 people on board.
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/I112964.php : accessed October 25, 2026), "Janke Postmus (1911-1993)".
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