March 2 » The U.S. Congress passes the Platt Amendment limiting the autonomy of Cuba, as a condition of the withdrawal of American troops.
May 9 » Australia opens its first national parliament in Melbourne.
September 14 » U.S. President William McKinley dies after being mortally wounded on September 6 by anarchist Leon Czolgosz and is succeeded by Vice President Theodore Roosevelt.
October 12 » President Theodore Roosevelt officially renames the "Executive Mansion" to the White House.
November 13 » The 1901 Caister lifeboat disaster.
December 10 » The first Nobel Prize ceremony is held in Stockholm on the fifth anniversary of Alfred Nobel's death.
Day of marriage May 11, 1922
The temperature on May 11, 1922 was between 0.7 °C and 11.8 °C and averaged 6.5 °C. There was 3.4 hours of sunshine (22%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
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 7 » Dáil Éireann ratifies the Anglo-Irish Treaty by a 64–57 vote.
February 6 » The Washington Naval Treaty is signed in Washington, D.C., limiting the naval armaments of United States, Britain, Japan, France, and Italy.
June 1 » The Royal Ulster Constabulary is founded.
September 11 » The Treaty of Kars is ratified in Yerevan, Armenia.
September 27 » King Constantine I of Greece abdicates his throne in favor of his eldest son, George II.
September 30 » The University of Alabama opens the American football season with a 110–0 victory over the Marion Military Institute, which still stands as Alabama's record for largest margin of victory and as their only 100 point game.
Day of death May 15, 1977
The temperature on May 15, 1977 was between 3.4 °C and 14.0 °C and averaged 9.7 °C. There was -0.1 mm of rain. There was 8.2 hours of sunshine (52%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
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.
March 4 » The 1977 Vrancea earthquake in eastern and southern Europe kills more than 1,500, mostly in Bucharest, Romania.
June 16 » Oracle Corporation is incorporated in Redwood Shores, California, as Software Development Laboratories (SDL), by Larry Ellison, Bob Miner and Ed Oates.
July 4 » The George Jackson Brigade plants a bomb at the main power substation for the Washington state capitol in Olympia, in solidarity with a prison strike at the Walla Walla State Penitentiary Intensive Security Unit.
August 20 » Voyager program: NASA launches the Voyager 2 spacecraft.
November 25 » Former Senator Benigno Aquino, Jr., is found guilty by the Philippine Military Commission No. 2 and is sentenced to death by firing squad. He is later assassinated in 1983.
When copying data from this family tree, please include a reference to the origin: Freek van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/van-loon-stamboom/I6536.php : accessed March 1, 2026), "Petronella Elisabeth Caspers (1901-1977)".
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