The temperature on July 31, 1936 was between 12.2 °C and 16.5 °C and averaged 14.3 °C. There was 4.4 mm of rain during 6.8 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 16 » Warmer-than-normal temperatures rapidly melt snow and ice on the upper Allegheny and Monongahela rivers, leading to a major flood in Pittsburgh.
May 28 » Alan Turing submits On Computable Numbers for publication.
June 26 » Initial flight of the Focke-Wulf Fw 61, the first practical helicopter.
August 4 » Prime Minister of Greece Ioannis Metaxas suspends parliament and the Constitution and establishes the 4th of August Regime.
November 12 » In California, the San Francisco–Oakland Bay Bridge opens to traffic.
Day of death August 12, 1979
The temperature on August 12, 1979 was between 10.8 °C and 16.8 °C and averaged 14.6 °C. There was 0.6 mm of rain during 0.9 hours. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 20 » An earthquake cracks open the Sinila volcanic crater on the Dieng Plateau, releasing poisonous H2S gas and killing 149 villagers in the Indonesian province of Central Java.
March 30 » Airey Neave, a British Member of Parliament, is killed by a car bomb as he exits the Palace of Westminster. The Irish National Liberation Army claims responsibility.
May 4 » Margaret Thatcher becomes the first female Prime Minister of the United Kingdom.
September 29 » The dictator Francisco Macias of Equatorial Guinea is shot by soldiers from Western Sahara.
December 9 » The eradication of the smallpox virus is certified, making smallpox the first of only two diseases that have been driven to extinction (rinderpest in 2011 being the other).
December 10 » Kaohsiung Incident: Taiwanese pro-democracy demonstrations are suppressed by the KMT dictatorship, and organizers are arrested.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I18708.php : accessed January 25, 2026), "Jacobus Johannes Jankowitz (1936-1979)".
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