January 23 » The Malolos Constitution is inaugurated, establishing the First Philippine Republic. Emilio Aguinaldo is sworn in as its first President.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
September 13 » Mackinder, Ollier and Brocherel make the first ascent of Batian (5,199 m - 17,058ft), the highest peak of Mount Kenya.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
Day of marriage December 30, 1926
The temperature on December 30, 1926 was between 3.1 °C and 7.7 °C and averaged 6.2 °C. There was 0.1 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
March 15 » The dictator Theodoros Pangalos is elected President of Greece without opposition.
April 6 » Varney Airlines makes its first commercial flight (Varney is the root company of United Airlines).
May 4 » The United Kingdom general strike begins.
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.
May 25 » Sholom Schwartzbard assassinates Symon Petliura, the head of the government of the Ukrainian People's Republic, which is in government-in-exile in Paris.
When copying data from this family tree, please include a reference to the origin: Cornelis Chatelain, "Family tree Chatelain", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-chatelain/I502689.php : accessed January 7, 2026), "Jacobus Johannes Jonas (1899-????)".
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