January 31 » Datu Muhammad Salleh is killed in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.
February 9 » The Davis Cup competition is established.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
July 19 » The first line of the Paris Métro opens for operation.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
October 9 » The Cook Islands become a territory of the United Kingdom.
Day of marriage July 1, 1926
The temperature on July 1, 1926 was between 9.5 °C and 22.3 °C and averaged 17.2 °C. There was 9.7 hours of sunshine (58%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Nienke Oudbier, "Descendants van de Vlag1", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oudbier/I2862.php : accessed February 17, 2026), "Evert Jan Valkenburg (1900-)".
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