January 10 » The first great Texas oil gusher is discovered at Spindletop in Beaumont, Texas.
April 25 » New York becomes the first U.S. state to require automobile license plates.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
October 29 » Leon Czolgosz, the assassin of U.S. President William McKinley, is executed by electrocution.
November 8 » Gospel riots: Bloody clashes take place in Athens following the translation of the Gospels into demotic Greek.
November 18 » Britain and the United States sign the Hay–Pauncefote Treaty, which nullifies the Clayton–Bulwer Treaty and withdraws British objections to an American-controlled canal in Panama.
Day of marriage February 25, 1930
The temperature on February 25, 1930 was between -1.5 °C and 8.4 °C and averaged 3.5 °C. There was 7.2 hours of sunshine (68%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. 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.
April 6 » At the end of the Salt March, Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire."
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
August 16 » The first color sound cartoon, Fiddlesticks, is released by Ub Iwerks.
September 27 » Bobby Jones wins the (pre-Masters) Grand Slam of golf.
October 5 » British airship R101 crashes in France en route to India on its maiden voyage.
December 7 » W1XAV in Boston, Massachusetts telecasts video from the CBS radio orchestra program, The Fox Trappers. The telecast also includes the first television commercial in the United States, an advertisement for I.J. Fox Furriers, who sponsored the radio show.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I172071.php : accessed December 30, 2025), "Johannes van Doesum (1901-)".
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