The temperature on May 24, 1915 was between 9.6 °C and 22.8 °C and averaged 16.6 °C. There was 14.2 hours of sunshine (88%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 13 » The 6.7 Mw Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
February 19 » World War I: The first naval attack on the Dardanelles begins when a strong Anglo-French task force bombards Ottoman artillery along the coast of Gallipoli.
April 5 » Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
May 22 » Three trains collide in the Quintinshill rail disaster near Gretna Green, Scotland, killing 227 people and injuring 246.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of marriage March 11, 1948
The temperature on March 11, 1948 was between 4.6 °C and 12.7 °C and averaged 8.0 °C. There was 2.8 hours of sunshine (24%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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).
January 7 » Kentucky Air National Guard pilot Thomas Mantell crashes while in pursuit of a supposed UFO.
April 3 » In Jeju Province, South Korea, a civil-war-like period of violence and human rights abuses begins, known as the Jeju uprising.
May 24 » Arab–Israeli War: Egypt captures the Israeli kibbutz of Yad Mordechai, but the five-day effort gives Israeli forces time to prepare enough to stop the Egyptian advance a week later.
June 22 » The ship HMTEmpire Windrush brought the first group of 802 West Indian immigrants to Tilbury, marking the start of modern immigration to the United Kingdom.
September 5 » In France, Robert Schuman becomes President of the Council while being Foreign minister; as such, he is the negotiator of the major treaties of the end of World War II.
September 17 » The Lehi (also known as the Stern gang) assassinates Count Folke Bernadotte, who was appointed by the United Nations to mediate between the Arab nations and Israel.
Day of death July 31, 1980
The temperature on July 31, 1980 was between 10.6 °C and 24.2 °C and averaged 18.3 °C. There was 10.5 hours of sunshine (67%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 26 » Egypt and Israel establish full diplomatic relations.
April 24 » Eight U.S. servicemen die in Operation Eagle Claw as they attempt to end the Iran hostage crisis.
July 5 » Swedish tennis player Björn Borg wins his fifth Wimbledon final and becomes the first male tennis player to win the championships five times in a row (1976–1980).
October 17 » As part of the Holy See–United Kingdom relations a British monarch makes the first state visit to the Vatican.
October 26 » The Peter Muhlenberg Memorial in Washington, D.C. is dedicated.
November 20 » Lake Peigneur drains into an underlying salt deposit. A misplaced Texaco oil probe had been drilled into the Diamond Crystal Salt Mine, causing water to flow down into the mine, eroding the edges of the hole.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I110916.php : accessed October 15, 2026), "Pieter de Haas (1915-1980)".
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