The temperature on July 24, 1911 was between 12.0 °C and 22.3 °C and averaged 17.7 °C. There was 11.8 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
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.
October 5 » The Kowloon–Canton Railway commences service.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of marriage December 20, 1935
The temperature on December 20, 1935 was between -6.1 °C and 1.7 °C and averaged -1.3 °C. There was 4.1 mm of rain during 1.9 hours. There was 1.6 hours of sunshine (21%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 20 » Caroline Mikkelsen becomes the first woman to set foot in Antarctica.
June 12 » A ceasefire is negotiated between Bolivia and Paraguay, ending the Chaco War.
June 25 » Colombia–Soviet Union relations are established.
August 14 » Franklin D. Roosevelt signs the Social Security Act, creating a government pension system for the retired.
September 2 » The Labor Day Hurricane, the most intense hurricane to strike the United States, makes landfall at Long Key, Florida, killing at least 400.
December 30 » The Italian Air Force bombs a Swedish Red Cross hospital during the Second Italo-Abyssinian War.
Day of death March 30, 1997
The temperature on March 30, 1997 was between 3.6 °C and 13.8 °C and averaged 8.4 °C. There was 10.7 hours of sunshine (84%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
May 8 » China Southern Airlines Flight 3456 crashes on approach into Bao'an International Airport, killing 35 people.
May 27 » The 1997 Central Texas tornado outbreak occurs, spawning multiple tornadoes in Central Texas, including the F5 that killed 27 in Jarrell.
June 26 » The U.S. Supreme Court rules that the Communications Decency Act violates the First Amendment to the United States Constitution.
July 10 » In London, scientists report the findings of the DNA analysis of a Neanderthal skeleton which supports the "out of Africa theory" of human evolution, placing an "African Eve" at 100,000 to 200,000 years ago.
September 14 » Eighty-one killed as five bogies of the Ahmedabad–Howrah Express plunge into a river in Bilaspur district of Madhya Pradesh, India.
September 26 » A Garuda Indonesia Airbus A300 crashes near Medan airport, killing 234.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I18773.php : accessed February 16, 2026), "Johanna Petronella van Welderen (1911-1997)".
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