The temperature on February 13, 1910 was between -3.3 °C and 5.6 °C and averaged 0.9 °C. There was 1.8 hours of sunshine (18%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 13 » The first public radio broadcast takes place; a live performance of the operas Cavalleria rusticana and Pagliacci are sent out over the airwaves from the Metropolitan Opera House in New York.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
July 15 » In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
August 22 » Korea is annexed by Japan with the signing of the Japan–Korea Treaty of 1910, beginning a period of Japanese rule of Korea that lasted until the end of World War II.
October 14 » English aviator Claude Grahame-White lands his aircraft on Executive Avenue near the White House in Washington, D.C.
November 10 » The date of Thomas A. Davis' opening of the San Diego Army and Navy Academy, although the official founding date is November 23, 1910.
Day of marriage October 26, 1949
The temperature on October 26, 1949 was between 6.2 °C and 17.0 °C and averaged 12.6 °C. There was 4.4 mm of rain during 3.8 hours. There was 1.8 hours of sunshine (18%). The average windspeed was 7 Bft (strong wind) and was prevailing from the southwest. 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).
February 14 » The Knesset (parliament of Israel) convenes for the first time.
February 15 » Gerald Lankester Harding and Roland de Vaux begin excavations at Cave 1 of the Qumran Caves, where they will eventually discover the first seven Dead Sea Scrolls.
March 8 » President of France Vincent Auriol and ex-emperor of Annam Bảo Đại sign the Élysée Accords, giving Vietnam greater independence from France and creating the State of Vietnam to oppose Viet Minh-led Democratic Republic of Vietnam.
May 23 » Cold War: The Western occupying powers approve the Basic Law and establish a new German state, the Federal Republic of Germany.
July 21 » The United States Senate ratifies the North Atlantic Treaty.
October 25 » The Battle of Guningtou in the Taiwan Strait begins.
Day of death December 7, 1979
The temperature on December 7, 1979 was between 8.6 °C and 11.3 °C and averaged 10.1 °C. There was 7.1 mm of rain during 4.5 hours. The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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.
January 7 » Third Indochina War: Cambodian–Vietnamese War: Phnom Penh falls to the advancing Vietnamese troops, driving out Pol Pot and the Khmer Rouge.
February 1 » Iranian Ayatollah Ruhollah Khomeini returns to Tehran after nearly 15 years of exile.
July 1 » Sony introduces the Walkman.
August 5 » In Afghanistan, Maoists undertake the Bala Hissar uprising against the Leninist government.
September 22 » A bright flash, resembling the detonation of a nuclear weapon, is observed near the Prince Edward Islands. Its cause is never determined.
December 21 » Lancaster House Agreement: An independence agreement for Rhodesia is signed in London by Lord Carrington, Sir Ian Gilmour, Robert Mugabe, Joshua Nkomo, Bishop Abel Muzorewa and S.C. Mundawarara.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I70310.php : accessed February 4, 2026), "Karel Martinus de Leeuw (1910-1979)".
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.