The temperature on March 29, 1905 was between 5.4 °C and 12.7 °C and averaged 8.7 °C. There was 5.8 hours of sunshine (46%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 22 » Bloody Sunday in Saint Petersburg, beginning of the 1905 revolution.
January 26 » The world's largest diamond ever, the Cullinan weighing 3,106.75 carats (0.621350kg), is found at the Premier Mine near Pretoria in South Africa.
April 4 » In India, an earthquake hits the Kangra Valley, killing 20,000, and destroying most buildings in Kangra, McLeod Ganj and Dharamshala.
April 17 » The Supreme Court of the United States decides Lochner v. New York, which holds that the "right to free contract" is implicit in the due process clause of the Fourteenth Amendment to the United States Constitution.
August 10 » Russo-Japanese War: Peace negotiations begin in Portsmouth, New Hampshire.
September 11 » The Ninth Avenue derailment occurs in New York City, killing 13.
Day of marriage August 13, 1930
The temperature on August 13, 1930 was between 11.1 °C and 17.5 °C and averaged 13.7 °C. There was 14.4 mm of rain during 5.6 hours. There was 2.5 hours of sunshine (17%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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 6 » The first diesel-powered automobile trip is completed, from Indianapolis, Indiana, to New York, New York.
April 2 » After the mysterious death of Empress Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
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."
April 18 » The British Broadcasting Corporation announced that "there is no news" in their evening report.
October 5 » British airship R101 crashes in France en route to India on its maiden voyage.
December 29 » Sir Muhammad Iqbal's presidential address in Allahabad introduces the two-nation theory and outlines a vision for the creation of Pakistan.
Day of death May 30, 1956
The temperature on May 30, 1956 was between 12.0 °C and 17.7 °C and averaged 14.1 °C. There was 0.4 mm of rain during 1.4 hours. There was 0.7 hours of sunshine (4%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 20 » The United States Merchant Marine Academy becomes a permanent Service Academy.
May 1 » A doctor in Japan reports an "epidemic of an unknown disease of the central nervous system", marking the official discovery of Minamata disease.
May 20 » In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
May 24 » The first Eurovision Song Contest is held in Lugano, Switzerland.
November 12 » Morocco, Sudan and Tunisia join the United Nations.
November 22 » The Summer Olympics, officially known as the games of the XVI Olympiad, are opened in Melbourne, Australia.
When copying data from this family tree, please include a reference to the origin: Freek van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/van-loon-stamboom/I10101.php : accessed February 25, 2026), "Petrus Obdam (1905-1956)".
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