The temperature on January 17, 1923 was between -2.7 °C and 1.7 °C and averaged -0.5 °C. There was 0.2 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 9 » Juan de la Cierva makes the first autogyro flight.
February 10 » Texas Tech University is founded as Texas Technological College in Lubbock, Texas
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
April 15 » Insulin becomes generally available for use by people with diabetes.
September 13 » Following a military coup in Spain, Miguel Primo de Rivera takes over, setting up a dictatorship.
November 8 » Beer Hall Putsch: In Munich, Adolf Hitler leads the Nazis in an unsuccessful attempt to overthrow the German government.
Day of marriage July 15, 1947
The temperature on July 15, 1947 was between 13.2 °C and 25.3 °C and averaged 19.7 °C. There was 13.8 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
April 6 » The first Tony Awards are presented for theatrical achievement.
May 22 » Cold War: The Truman Doctrine goes into effect, aiding Turkey and Greece.
August 17 » The Radcliffe Line, the border between the Dominions of India and Pakistan, is revealed.
September 30 » Pakistan joins the United Nations.
September 30 » The 1947 World Series is the first to be televised, to include an African-American player, to exceed $2 million in receipts, to see a pinch-hit home run, and to have six umpires on the field.
November 6 » Meet the Press, the longest running television program in history, makes its debut.
Day of death September 19, 1969
The temperature on September 19, 1969 was between 5.8 °C and 18.1 °C and averaged 11.7 °C. There was 11.0 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 20 » Richard Nixon is inaugurated the 37th President of the United States of America.
May 13 » May 13 Incident involving sectarian violence in Kuala Lumpur, Malaysia.
August 14 » The Troubles: British troops are deployed in Northern Ireland as political and sectarian violence breaks out, marking the start of the 37-year Operation Banner.
September 1 » Trần Thiện Khiêm becomes Prime Minister of South Vietnam under President Nguyễn Văn Thiệu.
December 1 » Vietnam War: The first draft lottery in the United States is held since World War II.
December 9 » U.S. Secretary of State William P. Rogers proposes his plan for a ceasefire in the War of Attrition; Egypt and Jordan accept it over the objections of the PLO, which leads to civil war in Jordan in September 1970.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I181781.php : accessed March 6, 2026), "Johannes Adrianus Heeffer (1923-1969)".
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