January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
July 1 » Start of first Tour de France bicycle race.
July 4 » The Philippine–American War is officially concluded.
October 6 » The High Court of Australia sits for the first time.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
Day of marriage May 18, 1928
The temperature on May 18, 1928 was between 3.2 °C and 12.3 °C and averaged 7.6 °C. There was 1.0 mm of rain. There was 3.7 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
June 4 » The President of the Republic of China, Zhang Zuolin, is assassinated by Japanese agents.
June 8 » Second Northern Expedition: The National Revolutionary Army captures Peking, whose name is changed to Beijing ("Northern Capital").
September 18 » Juan de la Cierva makes the first autogyro crossing of the English Channel.
October 10 » Chiang Kai-shek becomes Chairman of the Republic of China.
November 18 » Release of the animated short Steamboat Willie, the first fully synchronized sound cartoon, directed by Walt Disney and Ub Iwerks, featuring the third appearances of cartoon characters Mickey Mouse and Minnie Mouse. This is considered by the Disney corporation to be Mickey's birthday.
November 22 » The premier performance of Ravel's Boléro takes place in Paris.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I122045.php : accessed October 10, 2026), "Jan Triemstra (1903-)".
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