The temperature on April 5, 1910 was between 2.5 °C and 13.9 °C and averaged 8.5 °C. There was 10.0 hours of sunshine (76%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
March 1 » The deadliest avalanche in United States history buries a Great Northern Railway train in northeastern King County, Washington, killing 96 people.
May 6 » George V becomes King of Great Britain, Ireland, and many overseas territories, on the death of his father, Edward VII.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
August 22 » Korea is annexed by Japan with the signing of the Japan–Korea Treaty of 1910, beginning a period of Japanese rule of Korea that lasted until the end of World War II.
September 26 » Indian journalist Swadeshabhimani Ramakrishna Pillai is arrested after publishing criticism of the government of Travancore and is exiled.
Day of marriage October 22, 1942
The temperature on October 22, 1942 was between 6.4 °C and 14.2 °C and averaged 12.0 °C. There was 4.8 mm of rain during 7.5 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 19 » World War II: Nearly 250 Japanese warplanes attack the northern Australian city of Darwin, killing 243 people.
June 4 » World War II: The Battle of Midway begins. The Japanese Admiral Chūichi Nagumo orders a strike on Midway Island by much of the Imperial Japanese Navy.
June 22 » World War II: Erwin Rommel is promoted to Field Marshal after the Axis capture of Tobruk.
September 20 » The Holocaust in Ukraine: In the course of two days a German Einsatzgruppe murders at least 3,000 Jews in Letychiv.
September 21 » The Holocaust in Ukraine: On the Jewish holiday of Yom Kippur, Nazis send over 1,000 Jews of Pidhaitsi to Bełżec extermination camp.
December 10 » World War II: Government of Poland in exile send Raczyński's Note (the first official report on the Holocaust) to 26 governments who signed the Declaration by United Nations.
Day of death March 15, 1971
The temperature on March 15, 1971 was between 2.0 °C and 9.4 °C and averaged 6.0 °C. There was 1.3 mm of rain during 3.2 hours. There was 6.6 hours of sunshine (56%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 7 » Sheikh Mujibur Rahman, political leader of then East Pakistan (present day-Bangladesh), delivers his historic 7th March speech in the Racecourse Field (Now Suhrawardy Udyan) in Dhaka.
September 29 » Oman joins the Arab League.
October 27 » The Democratic Republic of the Congo is renamed Zaire.
November 15 » Intel releases the world's first commercial single-chip microprocessor, the 4004.
December 6 » Pakistan severs diplomatic relations with India, initiating the Indo-Pakistani War of 1971.
December 7 » Pakistan President Yahya Khan announces the formation of a coalition government with Nurul Amin as Prime Minister and Zulfikar Ali Bhutto as Deputy Prime Minister.
When copying data from this family tree, please include a reference to the origin: Wicher Dam, "Dambomen, negen verschillende stambomen DAM", database, Genealogy Online (https://www.genealogieonline.nl/dambomen/I22592.php : accessed March 14, 2026), "Jan Ritsema (1910-1971)".
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