The temperature on March 2, 1911 was between 3.9 °C and 11.0 °C and averaged 7.2 °C. There was 4.9 mm of rain. There was 0.7 hours of sunshine (6%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
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.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
Day of marriage November 30, 1934
The temperature on November 30, 1934 was between 2.4 °C and 10.2 °C and averaged 5.8 °C. There was 2.3 hours of sunshine (28%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
January 26 » German–Polish Non-Aggression Pact is signed.
January 26 » The Apollo Theater reopens in Harlem, New York City.
June 19 » The Communications Act of 1934 establishes the United States' Federal Communications Commission (FCC).
August 11 » The first civilian prisoners arrive at the Federal prison on Alcatraz Island.
August 19 » The German referendum of 1934 approves Hitler's appointment as head of state with the title of Führer.
November 30 » The LNER Class A3 4472 Flying Scotsman becomes the first steam locomotive to be authenticated as reaching 100mph.
Day of death April 21, 1967
The temperature on April 21, 1967 was between 1.1 °C and 9.2 °C and averaged 5.7 °C. There was 1.8 mm of rain during 1.4 hours. There was 7.3 hours of sunshine (51%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
January 29 » The "ultimate high" of the hippie era, the Mantra-Rock Dance, takes place in San Francisco and features Janis Joplin, Grateful Dead, and Allen Ginsberg.
April 24 » Cosmonaut Vladimir Komarov dies in Soyuz 1 when its parachute fails to open. He is the first human to die during a space mission.
May 1 » Elvis Presley and Priscilla Beaulieu are married in Las Vegas.
October 29 » Montreal's World Fair, Expo 67, closes with over 50 million visitors.
November 3 » Vietnam War: The Battle of Dak To begins.
December 21 » Louis Washkansky, the first man to undergo a human-to-human heart transplant, dies in Cape Town, South Africa, having lived for 18 days after the transplant.
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The Family tree Doppenberg publication was prepared by Henk Doppenberg (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Henk Doppenberg, "Family tree Doppenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-doppenberg/I1733.php : accessed January 9, 2026), "Maria Doppenberg (1911-1967)".
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