June 11 » The boundaries of the Colony of New Zealand are extended by the UK to include the Cook Islands.
August 10 » The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
October 29 » In Amherst, Massachusetts, nurse Jane Toppan is arrested for murdering the Davis family of Boston with an overdose of morphine.
November 8 » Gospel riots: Bloody clashes take place in Athens following the translation of the Gospels into demotic Greek.
November 27 » The U.S. Army War College is established.
Day of marriage December 12, 1930
The temperature on December 12, 1930 was between -1.0 °C and 5.7 °C and averaged 2.4 °C. There was 3.6 mm of rain during 3.3 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
January 26 » The Indian National Congress declares 26 January as Independence Day or as the day for Poorna Swaraj ("Complete Independence") which occurred 17 years later.
January 31 » 3M begins marketing Scotch Tape.
February 18 » While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
July 7 » Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
October 27 » Ratifications exchanged in London for the first London Naval Treaty go into effect immediately, further limiting the expensive naval arms race among its five signatories.
When copying data from this family tree, please include a reference to the origin: Marjon Root, "Family tree Root, Brinksma, Van Schoten en Molen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-root/I211.php : accessed December 29, 2025), "Pieter Bakker (1901-)".
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