The temperature on February 23, 1926 was between 6.4 °C and 8.9 °C and averaged 8.2 °C. There was 1.7 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 16 » History of Rocketry: Robert Goddard launches the first liquid-fueled rocket, at Auburn, Massachusetts.
May 25 » Sholom Schwartzbard assassinates Symon Petliura, the head of the government of the Ukrainian People's Republic, which is in government-in-exile in Paris.
June 14 » Brazil leaves the League of Nations.
August 6 » Gertrude Ederle becomes the first woman to swim across the English Channel.
September 25 » The international Convention to Suppress the Slave Trade and Slavery is first signed.
October 31 » Last issue of the independent Italian newspaper Il Mondo, thereafter suppressed by the Mussolini regime
Day of marriage August 20, 1948
The temperature on August 20, 1948 was between 8.8 °C and 18.9 °C and averaged 13.8 °C. There was 1.6 mm of rain during 0.2 hours. There was 4.0 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
June 20 » The Deutsche Mark is introduced in Western Allied-occupied Germany. The Soviet Military Administration in Germany responded by imposing the Berlin Blockade four days later.
August 23 » World Council of Churches is formed by 147 churches from 44 countries.
September 14 » The Indian Army captures the city of Aurangabad as part of Operation Polo.
October 28 » Paul Müller is awarded the Nobel Prize in Physiology or Medicine for his discovery of the insecticidal properties of DDT.
December 14 » Thomas T. Goldsmith Jr. and Estle Ray Mann are granted a patent for their cathode-ray tube amusement device, the earliest known interactive electronic game.
December 28 » The DC-3 airliner NC16002 disappears 50 miles south of Miami.
Day of death June 20, 1968
The temperature on June 20, 1968 was between 10.8 °C and 18.1 °C and averaged 14.4 °C. There was 8.0 mm of rain during 1.3 hours. There was 0.1 hours of sunshine (1%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 13 » Johnny Cash performs live at Folsom State Prison.
April 3 » Martin Luther King Jr. delivers his "I've Been to the Mountaintop" speech. He was assassinated the next day.
September 15 » The Soviet Zond 5 spaceship is launched, becoming the first spacecraft to fly around the Moon and re-enter the Earth's atmosphere.
September 24 » First episode of 60 Minutes airs on television.
November 11 » Vietnam War: Operation Commando Hunt initiated. The goal is to interdict men and supplies on the Ho Chi Minh trail, through Laos into South Vietnam.
December 25 » Kilvenmani massacre: Forty-four Dalits (untouchables) are burnt to death in Kizhavenmani village, Tamil Nadu, a retaliation for a campaign for higher wages by Dalit laborers.
When copying data from this family tree, please include a reference to the origin: Gijsbertus Cornelis (Bert) Severijn, "Family tree Severijn", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-severijn/I14191.php : accessed February 19, 2026), "Shirley Groot (1926-1968)".
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