The temperature on July 18, 1910 was between 15.4 °C and 21.7 °C and averaged 17.7 °C. There was 5.1 mm of rain. There was 0.6 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
March 3 » Rockefeller Foundation: John D. Rockefeller Jr. announces his retirement from managing his businesses so that he can devote all his time to philanthropy.
March 8 » French aviator Raymonde de Laroche becomes the first woman to receive a pilot's license.
June 19 » The first Father's Day is celebrated in Spokane, Washington.
July 24 » The Ottoman Empire captures the city of Shkodër, putting down the Albanian Revolt of 1910.
August 20 » Extremely dry and windy weather in the Inland Northwest of the United States causes several small wildfires to coalesce into the Great Fire of 1910, burning approximately 3million acres (12,000km) and killing 87 people.
October 21 » HMSNiobe arrives in Halifax Harbour to become the first ship of the Royal Canadian Navy.
Day of marriage July 11, 1935
The temperature on July 11, 1935 was between 14.9 °C and 28.2 °C and averaged 21.6 °C. There was 13.6 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 28 » Iceland becomes the first Western country to legalize therapeutic abortion.
February 2 » Leonarde Keeler administers polygraph tests to two murder suspects, the first time polygraph evidence was admitted in U.S. courts.
February 12 » USSMacon, one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.
July 28 » First flight of the Boeing B-17 Flying Fortress.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
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: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I474368.php : accessed February 13, 2026), "Jan Willem Bielsma (1910-)".
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