April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage September 7, 1922
The temperature on September 7, 1922 was between 7.4 °C and 17.9 °C and averaged 13.2 °C. There was 9.6 hours of sunshine (72%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
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 9 » Brazil becomes a member of the Berne Convention copyright treaty.
March 20 » The USSLangley is commissioned as the first United States Navy aircraft carrier.
April 24 » The first segment of the Imperial Wireless Chain providing wireless telegraphy between Leafield in Oxfordshire, England, and Cairo, Egypt, comes into operation.
June 29 » France grants 1km at Vimy Ridge "freely, and for all time, to the Government of Canada, the free use of the land exempt from all taxes".
October 19 » British Conservative MPs vote to terminate the coalition government with the Liberal Party.
November 26 » The Toll of the Sea debuts as the first general release film to use two-tone Technicolor. (The Gulf Between was the first film to do so, but it was not widely distributed.)
Day of death March 30, 1970
The temperature on March 30, 1970 was between 5.6 °C and 8.8 °C and averaged 6.9 °C. There was 6.7 mm of rain during 8.7 hours. There was 0.4 hours of sunshine (3%). The heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
March 10 » Vietnam War: Captain Ernest Medina is charged by the U.S. military with My Lai war crimes.
April 1 » President Richard Nixon signs the Public Health Cigarette Smoking Act into law, requiring the Surgeon General's warnings on tobacco products and banning cigarette advertising on television and radio in the United States, effective 1 January 1971.
April 24 » China launches Dong Fang Hong I, becoming the fifth nation to put an object into orbit using its own booster.
July 3 » The Troubles: The "Falls Curfew" begins in Belfast, Northern Ireland.
October 8 » Aleksandr Solzhenitsyn wins the Nobel Prize in literature.
November 14 » Soviet Union enters ICAO, making Russian the fourth official language of organization.
When copying data from this family tree, please include a reference to the origin: Henk Trox, "Family tree Trox", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-trox/I12433.php : accessed February 7, 2026), "Jacob Zalm (1897-1970)".
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