The temperature on July 21, 1889 was about 18.9 °C. There was 2 mm of rain. The air pressure was 26 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 72%. Source: KNMI
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
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.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
November 8 » Montana is admitted as the 41st U.S. state.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of marriage August 1, 1918
The temperature on August 1, 1918 was between 5.8 °C and 21.4 °C and averaged 14.6 °C. There was 13.9 hours of sunshine (89%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
June 8 » A solar eclipse is observed at Baker City, Oregon by scientists and an artist hired by the United States Navy.
July 26 » Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.
September 29 » Germany's Supreme Army Command tells the Kaiser and the Chancellor to open negotiations for an armistice.
October 3 » King Boris III of Bulgaria accedes to the throne.
November 14 » Czechoslovakia becomes a republic.
December 16 » Vincas Mickevičius-Kapsukas declares the formation of the Lithuanian Soviet Socialist Republic; it is dissolved in 1919.
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/I101304.php : accessed October 11, 2026), "Peter de Jong (1889-????)".
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