January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
June 14 » Hawaii becomes a United States territory.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
October 25 » The United Kingdom annexes the Transvaal.
November 7 » The People's Party is founded in Cuba.
Day of marriage September 17, 1920
The temperature on September 17, 1920 was between 9.9 °C and 17.6 °C and averaged 13.5 °C. There was 1.7 mm of rain. There was 5.7 hours of sunshine (45%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-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.
February 9 » Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
February 29 » Czechoslovak National Assembly adopts the Constitution.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
November 1 » American fishing schooner Esperanto defeats the Canadian fishing schooner Delawana in the First International Fishing Schooner Championship Races in Halifax, Nova Scotia.
November 28 » Irish War of Independence: Kilmichael Ambush: The Irish Republican Army ambush a convoy of British Auxiliaries and kill seventeen.
Day of death December 13, 1960
The temperature on December 13, 1960 was between -0.4 °C and 2.4 °C and averaged 1.1 °C. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
April 9 » Dr Hendrik Verwoerd, Prime Minister of South Africa and architect of apartheid, narrowly survives an assassination attempt by a white farmer, David Pratt in Johannesburg.
April 15 » At Shaw University in Raleigh, North Carolina, Ella Baker leads a conference that results in the creation of the Student Nonviolent Coordinating Committee, one of the principal organizations of the civil rights movement in the 1960s.
September 8 » In Huntsville, Alabama, US President Dwight D. Eisenhower formally dedicates the Marshall Space Flight Center (NASA had already activated the facility on July 1).
November 11 » A military coup against President Ngô Đình Diệm of South Vietnam is crushed.
December 13 » While Emperor Haile Selassie of Ethiopia visits Brazil, his Imperial Bodyguard seizes the capital and proclaims him deposed and his son, Crown Prince Asfa Wossen, Emperor.
December 14 » Convention against Discrimination in Education of UNESCO is adopted.
When copying data from this family tree, please include a reference to the origin: Wicher Dam, "Dambomen, negen verschillende stambomen DAM", database, Genealogy Online (https://www.genealogieonline.nl/dambomen/I18941.php : accessed January 8, 2026), "Johannes Franciscus "Johanna" de Leeuw (1900-1960)".
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.