The temperature on June 30, 1880 was about 19.2 °C. The air pressure was 1 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 70%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
February 13 » Thomas Edison observes Thermionic emission.
June 28 » Australian bushranger Ned Kelly is captured at Glenrowan.
June 29 » France annexes Tahiti, renaming the independent Kingdom of Tahiti as "Etablissements de français de l'Océanie".
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
November 11 » Australian bushranger Ned Kelly is hanged at Melbourne Gaol.
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of death August 23, 1929
The temperature on August 23, 1929 was between 10.5 °C and 17.4 °C and averaged 15.1 °C. There was 1.8 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 1 » The former municipalities of Point Grey, British Columbia and South Vancouver, British Columbia are amalgamated into Vancouver.
February 26 » President Calvin Coolidge signs an executive order establishing the 96,000 acre Grand Teton National Park in Wyoming.
August 11 » Babe Ruth becomes the first baseball player to hit 500 home runs in his career with a home run at League Park in Cleveland, Ohio.
October 29 » The New York Stock Exchange crashes in what will be called the Crash of '29 or "Black Tuesday", ending the Great Bull Market of the 1920s and beginning the Great Depression.
November 18 » Grand Banks earthquake: Off the south coast of Newfoundland in the Atlantic Ocean, a Richter magnitude 7.2 submarine earthquake, centered on the Grand Banks, breaks 12 submarine transatlantic telegraph cables and triggers a tsunami that destroys many south coast communities in the Burin Peninsula.
December 24 » A four alarm fire breaks out in the West Wing of the White House in Washington, D.C.
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/I6215.php : accessed January 24, 2026), "John Leopold Heyman (1880-1929)".
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