The temperature on April 30, 1870 was about 11.1 °C. There was 0.3 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 78%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 4 » Utah is admitted as the 45th U.S. state.
March 1 » Henri Becquerel discovers radioactive decay.
May 18 » Khodynka Tragedy: A mass panic on Khodynka Field in Moscow during the festivities of the coronation of Russian Tsar Nicholas II results in the deaths of 1,389 people.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
Day of death September 16, 1966
The temperature on September 16, 1966 was between 5.2 °C and 16.8 °C and averaged 10.9 °C. There was 0.1 mm of rain. There was 4.0 hours of sunshine (32%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
March 17 » Off the coast of Spain in the Mediterranean, the DSVAlvin submarine finds a missing American hydrogen bomb.
June 8 » Topeka, Kansas, is devastated by a tornado that registers as an "F5" on the Fujita scale: The first to exceed US$100million in damages. Sixteen people are killed, hundreds more injured, and thousands of homes damaged or destroyed.
August 1 » Charles Whitman kills 16 people at the University of Texas at Austin before being killed by the police.
August 1 » Purges of intellectuals and imperialists becomes official China policy at the beginning of the Cultural Revolution.
October 22 » The Soviet Union launches Luna 12.
October 22 » The Supremes become the first all-female music group to attain a No. 1 selling album (The Supremes A' Go-Go).
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/I116889.php : accessed October 17, 2026), "Wytze Johannes Heddema (1870-1966)".
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