April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage January 7, 1925
The temperature on January 7, 1925 was between 0.5 °C and 7.3 °C and averaged 4.9 °C. There was 0.4 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. 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.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
April 16 » During the Communist St Nedelya Church assault in Sofia, Bulgaria, 150 are killed and 500 are wounded.
June 16 » The most famous Young Pioneer camp of the Soviet Union, Artek, is established.
July 21 » Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching human evolution in class and fined $100.
September 8 » Rif War: Spanish forces including troops from the Foreign Legion under Colonel Francisco Franco landing at Al Hoceima, Morocco.
October 30 » John Logie Baird creates Britain's first television transmitter.
December 11 » Roman Catholic papal encyclical Quas primas introduces the Feast of Christ the King.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I6669.php : accessed February 27, 2026), "Jacob Haak (1897-????)".
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