The temperature on March 12, 1911 was between 1.6 °C and 8.0 °C and averaged 4.8 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
January 30 » The destroyer USSTerry makes the first airplane rescue at sea saving the life of Douglas McCurdy ten miles from Havana, Cuba.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
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.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
Day of marriage May 9, 1936
The temperature on May 9, 1936 was between 9.7 °C and 19.5 °C and averaged 14.2 °C. There was 0.1 mm of rain during 0.2 hours. There was 3.6 hours of sunshine (23%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I69828.php : accessed February 6, 2026), "Jan Geert Niezen (1911-)".
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