The temperature on October 15, 1911 was between 8.2 °C and 11.2 °C and averaged 9.9 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 3 » A magnitude 7.7 earthquake destroys the city of Almaty in Russian Turkestan.
January 26 » Glenn Curtiss flies the first successful American seaplane.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
Day of marriage May 16, 1935
The temperature on May 16, 1935 was between 0.4 °C and 12.0 °C and averaged 6.0 °C. There was 0.5 mm of rain during 1.2 hours. There was 7.7 hours of sunshine (49%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
June 11 » Inventor Edwin Armstrong gives the first public demonstration of FM broadcasting in the United States at Alpine, New Jersey.
July 28 » First flight of the Boeing B-17 Flying Fortress.
September 2 » The Labor Day Hurricane, the most intense hurricane to strike the United States, makes landfall at Long Key, Florida, killing at least 400.
December 9 » The Downtown Athletic Club Trophy, later renamed the Heisman Trophy, is awarded for the first time. The winner is halfback Jay Berwanger of the University of Chicago.
December 9 » Walter Liggett, American newspaper editor and muckraker, is killed in a gangland murder.
December 12 » Lebensborn Project, a Nazi reproduction program, is founded by Heinrich Himmler.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I64751.php : accessed January 18, 2026), "Roelfien Hazelhoff (1911-)".
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