The temperature on April 19, 1889 was about 15.6 °C. The air pressure was 14 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 67%. Source: KNMI
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
September 23 » Nintendo Koppai (Later Nintendo Company, Limited) is founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
Day of death December 14, 1965
The temperature on December 14, 1965 was between 0.6 °C and 8.3 °C and averaged 5.3 °C. There was 1.7 hours of sunshine (22%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 6 » Launch of Early Bird, the first commercial communications satellite to be placed in geosynchronous orbit.
July 16 » The Mont Blanc Tunnel linking France and Italy opens.
July 29 » Vietnam War: The first 4,000 101st Airborne Division paratroopers arrive in Vietnam, landing at Cam Ranh Bay.
September 9 » The United States Department of Housing and Urban Development is established.
November 16 » Venera program: The Soviet Union launches the Venera 3 space probe toward Venus, which will be the first spacecraft to reach the surface of another planet.
December 15 » Project Gemini: Gemini 6A, crewed by Wally Schirra and Thomas Stafford, is launched from Cape Kennedy, Florida. Four orbits later, it achieves the first space rendezvous, with Gemini 7.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I6987.php : accessed March 11, 2026), "Hendrik Bongers (1889-1965)".
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