February 4 » The Philippine–American War begins with the Battle of Manila.
February 22 » Filipino forces led by General Antonio Luna launch counterattacks for the first time against the American forces during the Philippine–American War. The Filipinos fail to regain Manila from the Americans.
March 6 » Bayer registers "Aspirin" as a trademark.
September 13 » Henry Bliss is the first person in the United States to be killed in an automobile accident.
December 11 » Second Boer War: In the Battle of Magersfontein the Boers commanded by general Piet Cronjé inflict a defeat on the forces of the British Empire commanded by Lord Methuen trying to relieve the Siege of Kimberley.
Day of marriage November 25, 1927
The temperature on November 25, 1927 was between -0.9 °C and 10.6 °C and averaged 4.7 °C. There was 0.2 mm of rain. There was 5.0 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 11 » Louis B. Mayer, head of film studio Metro-Goldwyn-Mayer (MGM), announces the creation of the Academy of Motion Picture Arts and Sciences, at a banquet in Los Angeles, California.
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
May 1 » The Union Labor Life Insurance Company is founded by the American Federation of Labor.
May 18 » The Bath School disaster: Forty-five people, including many children, are killed by bombs planted by a disgruntled school-board member in Michigan.
November 12 » Leon Trotsky is expelled from the Soviet Communist Party, leaving Joseph Stalin in undisputed control of the Soviet Union.
December 27 » Kern and Hammerstein's musical play Show Boat, considered to be the first true American musical play, opens at the Ziegfeld Theatre on Broadway.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I28790.php : accessed January 31, 2026), "Sybren Abma (1899-????)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.