February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
March 1 » Henri Becquerel discovers radioactive decay.
July 28 » The city of Miami, Florida is incorporated.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
November 27 » Also sprach Zarathustra by Richard Strauss is first performed.
December 14 » The Glasgow Underground Railway is opened by the Glasgow District Subway Company.
Day of marriage May 11, 1918
The temperature on May 11, 1918 was between 3.4 °C and 14.5 °C and averaged 9.9 °C. There was 0.1 mm of rain. There was 0.7 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 3 » The Twin Peaks Tunnel in San Francisco, California begins service as the longest streetcar tunnel in the world at 11,920 feet (3,633 meters) long.
February 16 » The Council of Lithuania unanimously adopts the Act of Independence, declaring Lithuania an independent state.
April 20 » Manfred von Richthofen, a.k.a. The Red Baron, shoots down his 79th and 80th victims, his final victories before his death the following day.
July 26 » Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.
November 11 » Emperor Charles I of Austria relinquishes power.
November 14 » Czechoslovakia becomes a republic.
Day of death July 21, 1967
The temperature on July 21, 1967 was between 10.0 °C and 21.8 °C and averaged 16.8 °C. There was 0.4 mm of rain during 0.2 hours. There was 7.3 hours of sunshine (45%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
April 23 » Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1) a manned spaceflight carrying cosmonaut Colonel Vladimir Komarov is launched into orbit.
May 26 » The Beatles' Sgt. Pepper's Lonely Hearts Club Band is released.
September 3 » Dagen H in Sweden: Traffic changes from driving on the left to driving on the right overnight.
November 7 » US President Lyndon B. Johnson signs the Public Broadcasting Act of 1967, establishing the Corporation for Public Broadcasting.
November 9 » The first issue of Rolling Stone magazine is published.
November 14 » American physicist Theodore Maiman is given a patent for his ruby laser systems, the world's first laser.
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/I97068.php : accessed January 29, 2026), "Maria Helena Scholte (1896-1967)".
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