The temperature on March 8, 1911 was between -1 °C and 7.7 °C and averaged 2.9 °C. There was 3.2 hours of sunshine (28%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
Day of marriage May 19, 1930
The temperature on May 19, 1930 was between 7.0 °C and 14.4 °C and averaged 10.4 °C. There was 6.0 hours of sunshine (38%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 10 » The Việt Nam Quốc Dân Đảng launches the failed Yên Bái mutiny in hope to overthrow French protectorate over Vietnam.
March 12 » Mahatma Gandhi begins the Salt March, a 200-mile march to the sea to protest the British monopoly on salt in India.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
June 9 » A Chicago Tribune reporter, Jake Lingle, is killed during rush hour at the Illinois Central train station by Leo Vincent Brothers, allegedly over a $100,000 gambling debt owed to Al Capone.
June 16 » Sovnarkom establishes decree time in the USSR.
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
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/I257209.php : accessed June 16, 2024), "Johanna Frederika de Boer (1911-)".
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