February 23 » Second Boer War: During the Battle of the Tugela Heights, the first British attempt to take Hart's Hill fails.
February 27 » Second Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronjé at the Battle of Paardeberg.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
August 16 » The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British. The battle had begun when a force of between 2,000 and 3,000 Boers had surrounded a force of 500 Australians, Rhodesians, Canadians and British soldiers at a supply dump at Brakfontein Drift.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage May 21, 1926
The temperature on May 21, 1926 was between 7.6 °C and 20.9 °C and averaged 14.7 °C. There was 8.2 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 26 » The first demonstration of the television by John Logie Baird.
March 15 » The dictator Theodoros Pangalos is elected President of Greece without opposition.
March 16 » History of Rocketry: Robert Goddard launches the first liquid-fueled rocket, at Auburn, Massachusetts.
May 9 » Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim.)
May 22 » Chiang Kai-shek replaces the communists in Kuomintang China.
August 5 » Harry Houdini performs his greatest feat, spending 91 minutes underwater in a sealed tank before escaping.
Day of death October 10, 1969
The temperature on October 10, 1969 was between 5.9 °C and 20.3 °C and averaged 12.7 °C. There was 0.1 mm of rain. There was 8.3 hours of sunshine (75%). The average windspeed was 1 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 16 » Soviet spacecraft Soyuz 4 and Soyuz 5 perform the first-ever docking of manned spacecraft in orbit, the first-ever transfer of crew from one space vehicle to another, and the only time such a transfer was accomplished with a space walk.
March 10 » In Memphis, Tennessee, James Earl Ray pleads guilty to assassinating Martin Luther King, Jr. He later unsuccessfully attempts to recant.
April 9 » The first British-built Concorde 002 makes its maiden flight from Filton to RAF Fairford.
April 17 » Communist Party of Czechoslovakia chairman Alexander Dubček is deposed.
June 23 » Warren E. Burger is sworn in as Chief Justice of the United States Supreme Court by retiring Chief Justice Earl Warren.
August 12 » Violence erupts after the Apprentice Boys of Derry march in Derry, Northern Ireland, resulting in a three-day communal riot known as the Battle of the Bogside.
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/I208629.php : accessed December 29, 2025), "Jan Pikstra (1900-1969)".
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