January 31 » Czechoslav Trade Union Association is founded in Prague.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage November 29, 1923
The temperature on November 29, 1923 was between -5.9 °C and 4.5 °C and averaged 0.3 °C. There was 0.9 mm of rain. There was 3.6 hours of sunshine (44%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
April 15 » Insulin becomes generally available for use by people with diabetes.
April 18 » Yankee Stadium: "The House that Ruth Built" opens.
September 26 » The German government accepts the occupation of the Ruhr.
September 29 » The French Mandate for Syria and the Lebanon takes effect.
December 21 » United Kingdom and Nepal formally signed an agreement of friendship, called the Nepal–Britain Treaty of 1923, which superseded the Treaty of Sugauli signed in 1816.
Day of death September 24, 1967
The temperature on September 24, 1967 was between 12.6 °C and 19.6 °C and averaged 16.0 °C. There was 0.1 mm of rain during 0.1 hours. There was 0.6 hours of sunshine (5%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
February 13 » American researchers discover the Madrid Codices by Leonardo da Vinci in the National Library of Spain.
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.
June 13 » U.S. President Lyndon B. Johnson nominates Solicitor-General Thurgood Marshall to become the first black justice on the U.S. Supreme Court.
September 1 » The Khmer–Chinese Friendship Association is banned in Cambodia.
September 30 » The BBC Light Programme, Third Programme and Home Service are replaced with BBC Radio 2, 3 and 4 Respectively, BBC Radio 1 is also launched.
December 21 » Louis Washkansky, the first man to undergo a human-to-human heart transplant, dies in Cape Town, South Africa, having lived for 18 days after the transplant.
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/I200778.php : accessed January 11, 2026), "Tonnis Roetciesoender (1897-1967)".
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