The temperature on May 6, 1889 was about 23.5 °C. The air pressure was 4 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 45%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
April 22 » At noon, thousands rush to claim land in the Land Rush of 1889. Within hours the cities of Oklahoma City and Guthrie are formed with populations of at least 10,000.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
June 3 » The first long-distance electric power transmission line in the United States is completed, running 14 miles (23km) between a generator at Willamette Falls and downtown Portland, Oregon.
Day of marriage August 12, 1920
The temperature on August 12, 1920 was between 10.3 °C and 19.1 °C and averaged 14.5 °C. There was 0.7 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
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.
January 13 » The Reichstag Bloodbath of January 13, 1920, the bloodiest demonstration in German history.
January 16 » The League of Nations holds its first council meeting in Paris, France.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
February 14 » The League of Women Voters is founded in Chicago.
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
November 28 » FIDAC (The Interallied Federation of War Veterans Organisations), the first international organization of war veterans is established in Paris, France
When copying data from this family tree, please include a reference to the origin: Peter Menting, "Family tree Menting", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-menting/I20210.php : accessed January 11, 2026), "Peter Johannes Kersten (1889-????)".
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