February 16 » Iceland's first football club, Knattspyrnufélag Reykjavíkur, is founded.
March 31 » Malolos, capital of the First Philippine Republic, is captured by American forces.
July 29 » The First Hague Convention is signed.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage July 20, 1927
The temperature on July 20, 1927 was between 6.3 °C and 20.8 °C and averaged 14.6 °C. There was 8.0 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
May 4 » The Academy of Motion Picture Arts and Sciences is incorporated.
May 20 » Treaty of Jeddah: The United Kingdom recognizes the sovereignty of King Ibn Saud in the Kingdoms of Hejaz and Nejd, which later merge to become the Kingdom of Saudi Arabia.
July 4 » First flight of the Lockheed Vega.
September 18 » The Columbia Broadcasting System goes on the air.
November 12 » Leon Trotsky is expelled from the Soviet Communist Party, leaving Joseph Stalin in undisputed control of the Soviet Union.
Day of death August 3, 1952
The temperature on August 3, 1952 was between 13.1 °C and 20.1 °C and averaged 16.3 °C. There was 8.1 mm of rain during 0.6 hours. There was 10.6 hours of sunshine (69%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
June 21 » The Philippine School of Commerce, through a republic act, is converted to Philippine College of Commerce, later to be the Polytechnic University of the Philippines.
July 21 » The 7.3 Mw Kern County earthquake strikes Southern California with a maximum Mercalli intensity of XI (Extreme), killing 12 and injuring hundreds.
August 12 » The Night of the Murdered Poets: Thirteen prominent Jewish intellectuals are murdered in Moscow, Russia, Soviet Union.
September 6 » A prototype aircraft crashes at the Farnborough Airshow in Hampshire, England, killing 29 spectators and the two on board.
October 8 » The Harrow and Wealdstone rail crash kills 112 people.
November 14 » The first regular UK Singles Chart published by the New Musical Express.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I290920.php : accessed February 22, 2026), "Adrianus Sips (1899-1952)".
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