The temperature on June 9, 1911 was between 8.5 °C and 17.0 °C and averaged 13.5 °C. There was 3.9 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
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 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
Day of death July 12, 1928
The temperature on July 12, 1928 was between 9.8 °C and 28.5 °C and averaged 19.8 °C. There was 13.9 hours of sunshine (85%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Pedigree of Gerrit Eersen", database, Genealogy Online (https://www.genealogieonline.nl/gerrit-eersen/I39412.php : accessed December 27, 2025), "Evert Eersen (1911-1928)".
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