The temperature on June 7, 1923 was between 3.2 °C and 16.5 °C and averaged 10.7 °C. There was 0.3 mm of rain. There was 11.0 hours of sunshine (66%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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.
April 28 » Wembley Stadium is opened, named initially as the Empire Stadium.
September 1 » The Great Kantō earthquake devastates Tokyo and Yokohama, killing about 105,000 people.
September 29 » The French Mandate for Syria and the Lebanon takes effect.
October 6 » The Turkish National Movement enters Constantinople.
October 22 » The royalist Leonardopoulos–Gargalidis coup d'état attempt fails in Greece, discrediting the monarchy and paving the way for the establishment of the Second Hellenic Republic.
November 11 » Adolf Hitler was arrested in Munich for high treason for his role in the Beer Hall Putsch.
Day of marriage May 23, 1949
The temperature on May 23, 1949 was between 9.4 °C and 21.0 °C and averaged 15.1 °C. There was 9.8 hours of sunshine (61%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
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).
January 15 » Chinese Civil War: The Communist forces take over Tianjin from the Nationalist Government.
January 26 » The Hale telescope at Palomar Observatory sees first light under the direction of Edwin Hubble, becoming the largest aperture optical telescope (until BTA-6 is built in 1976).
April 7 » The Rodgers and Hammerstein musical South Pacific opened on Broadway; it would run for 1,925 performances and win ten Tony Awards.
June 24 » The first television western, Hopalong Cassidy, starring William Boyd, is aired on NBC.
August 29 » Soviet atomic bomb project: The Soviet Union tests its first atomic bomb, known as First Lightning or Joe 1, at Semipalatinsk, Kazakhstan.
October 14 » The Smith Act trials of Communist Party leaders in the United States convicts eleven defendants of conspiring to advocate the violent overthrow of the federal government.
Day of death April 8, 2001
The temperature on April 8, 2001 was between 3.6 °C and 10.5 °C and averaged 6.9 °C. There was 3.0 mm of rain during 2.9 hours. There was 4.4 hours of sunshine (33%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
February 11 » A Dutch programmer launched the Anna Kournikova virus infecting millions of emails via a trick photo of the tennis star.
May 3 » The United States loses its seat on the U.N. Human Rights Commission for the first time since the commission was formed in 1947.
September 3 » In Belfast, Protestant loyalists begin a picket of Holy Cross, a Catholic primary school for girls. For the next 11 weeks, riot police escort the schoolchildren and their parents through hundreds of protesters, some of whom hurl missiles and abuse. The protest sparks fierce rioting and grabs world headlines.
September 27 » In Switzerland, a gunman shoots 18 citizens, killing 14 and then himself.
December 19 » Argentine economic crisis: December riots: Riots erupt in Buenos Aires, Argentina.
December 22 » Burhanuddin Rabbani, political leader of the Northern Alliance, hands over power in Afghanistan to the interim government headed by President Hamid Karzai.
When copying data from this family tree, please include a reference to the origin: Piet Oosterhaven, "Family tree Oosterhaven", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oosterhaven/I46.php : accessed February 18, 2026), "Sipkje Sybesma (1923-2001)".
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