July 4 » The Philippine–American War is officially concluded.
July 20 » The Ford Motor Company ships its first automobile.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
September 11 » The first race at the Milwaukee Mile in West Allis, Wisconsin is held. It is the oldest major speedway in the world.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
Day of marriage May 1, 1926
The temperature on May 1, 1926 was between 9.3 °C and 18.8 °C and averaged 13.7 °C. There was 2.0 hours of sunshine (13%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the northeast. Source: KNMI
January 8 » Crown Prince Nguyễn Phúc Vĩnh Thuỵ ascends the throne to become the last monarch of Vietnam.
March 14 » The El Virilla train accident, Costa Rica, kills 248 people and wounds another 93 when a train falls off a bridge over the Río Virilla between Heredia and Tibás.
August 5 » Harry Houdini performs his greatest feat, spending 91 minutes underwater in a sealed tank before escaping.
September 8 » Germany is admitted to the League of Nations.
September 25 » The international Convention to Suppress the Slave Trade and Slavery is first signed.
November 11 » The United States Numbered Highway System is established.
When copying data from this family tree, please include a reference to the origin: E. Hillebregt - Zuiderwijk, "Family tree Olierook", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_olierook/I405.php : accessed March 1, 2026), "Johanna Catharina Jozephine Olierook (1903-)".
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