The temperature on August 12, 1911 was between 17.7 °C and 31.1 °C and averaged 24.3 °C. There was 10.3 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
January 26 » Glenn Curtiss flies the first successful American seaplane.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
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.
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.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
Day of death November 6, 1912
The temperature on November 6, 1912 was between -0.5 °C and 6.7 °C and averaged 2.5 °C. There was 0.2 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 4 » The Scout Association is incorporated throughout the British Empire by royal charter.
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.
November 12 » King George I of Greece makes a triumphal entry into Thessaloniki after its liberation from 482 years of Ottoman rule.
December 19 » William Van Schaick, captain of the steamship General Slocum which caught fire and killed over one thousand people, is pardoned by U.S. President William Howard Taft after 3⁄2 years in Sing Sing prison.
When copying data from this family tree, please include a reference to the origin: Cor van der Linden, "Kaizer/van der Linden family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaizer/I2406.php : accessed January 26, 2026), "Maria Johanna Letschert (1911-1912)".
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