The temperature on December 19, 1889 was about 1.2 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 98%. Source: KNMI
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 8 » Montana is admitted as the 41st U.S. state.
Day of marriage May 20, 1915
The temperature on May 20, 1915 was between 9.7 °C and 16.5 °C and averaged 13.0 °C. There was 1.5 hours of sunshine (9%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. 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.
January 25 » Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
April 5 » Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
September 12 » French soldiers rescue over 4,000 Armenian Genocide survivors stranded on Musa Dagh.
October 14 » World War I: Bulgaria joins the Central Powers.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of death June 10, 1967
The temperature on June 10, 1967 was between 6.2 °C and 15.5 °C and averaged 11.6 °C. There was 0.2 mm of rain during 0.1 hours. There was 3.9 hours of sunshine (23%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
May 20 » The Popular Movement of the Revolution political party is established in the Democratic Republic of the Congo.
June 2 » Protests in West Berlin against the arrival of the Shah of Iran turn into riots, during which Benno Ohnesorg is killed by a police officer. His death results in the founding of the terrorist group Movement 2 June.
July 3 » The Aden Emergency: The Battle of the Crater in which the British Argyll and Sutherland Highlanders retake the Crater district following the Arab Police mutiny.
November 9 » Apollo program: NASA launches the unmanned Apollo 4 test spacecraft atop the first Saturn V rocket from Cape Kennedy, Florida.
November 22 » UN Security Council Resolution 242 is adopted, establishing a set of the principles aimed at guiding negotiations for an Arab–Israeli peace settlement.
December 19 » Harold Holt, the Prime Minister of Australia, is officially presumed dead.
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/I171899.php : accessed December 30, 2025), "Gertje Keegstra (1889-1967)".
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