March 16 » In Melbourne the representatives of five colonies adopted a constitution, which would become the basis of the Commonwealth of Australia.
May 1 » Spanish–American War: Battle of Manila Bay: The Asiatic Squadron of the United States Navy destroys the Pacific Squadron of the Spanish Navy after a seven-hour battle. Spain loses all seven of its ships, and 381 Spanish sailors die. There are no American vessel losses or combat deaths.
June 13 » Yukon Territory is formed, with Dawson chosen as its capital.
July 3 » A Spanish squadron, led by Pascual Cervera y Topete, is defeated by an American squadron under William T. Sampson in the Battle of Santiago de Cuba.
August 24 » Count Muravyov, Foreign Minister of Russia presents a rescript that convoked the First Hague Peace Conference.
September 21 » Empress Dowager Cixi seizes power and ends the Hundred Days' Reform in China.
Day of marriage August 18, 1920
The temperature on August 18, 1920 was between 11.2 °C and 20.7 °C and averaged 15.5 °C. There was 0.2 mm of rain. There was 6.8 hours of sunshine (47%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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.
January 19 » The United States Senate votes against joining the League of Nations.
February 9 » Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
June 15 » Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
Day of death November 12, 1988
The temperature on November 12, 1988 was between 9.3 °C and 12.4 °C and averaged 10.4 °C. There was 14.1 mm of rain during 5.8 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 16 » The Troubles: Ulster loyalist militant Michael Stone attacks a Provisional IRA funeral in Belfast with pistols and grenades. Three persons, one of them a member of PIRA are killed, and more than 60 others are wounded.
May 9 » New Parliament House, Canberra officially opens.
August 21 » The 6.9 Mw Nepal earthquake shakes the Nepal–India border with a maximum Mercalli intensity of VIII (Severe), leaving 709–1,450 people killed and thousands injured.
September 8 » Yellowstone National Park is closed for the first time in U.S. history due to ongoing fires.
November 15 » Israeli–Palestinian conflict: An independent State of Palestine is proclaimed by the Palestinian National Council.
November 22 » In Palmdale, California, the first prototype B-2 Spirit stealth bomber is revealed.
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/I79662.php : accessed October 14, 2026), "Wilhelmina van Rossum (1898-1988)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.