The temperature on March 30, 1911 was between 8.7 °C and 21.3 °C and averaged 14.5 °C. There was 4.7 hours of sunshine (37%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 3 » A gun battle in the East End of London left two dead and sparked a political row over the involvement of then-Home Secretary Winston Churchill.
January 26 » Glenn Curtiss flies the first successful American seaplane.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
October 5 » The Kowloon–Canton Railway commences service.
When copying data from this family tree, please include a reference to the origin: Roelf Schrik, "Family tree Kooistra", database, Genealogy Online (https://www.genealogieonline.nl/stamboom--kooistra/I8.php : accessed February 15, 2026), "Matje (Martje) Kooistra (1911-)".
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