May 18 » The United Kingdom proclaims a protectorate over Tonga.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death November 13, 1975
The temperature on November 13, 1975 was between 0.5 °C and 4.3 °C and averaged 2.5 °C. There was -0.1 mm of rain. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
March 11 » Vietnam War: North Vietnamese and Viet Cong guerrilla forces establish control over Buôn Ma Thuột commune from the South Vietnamese army.
April 17 » The Cambodian Civil War ends. The Khmer Rouge captures the capital Phnom Penh and Cambodian government forces surrender.
May 28 » Fifteen West African countries sign the Treaty of Lagos, creating the Economic Community of West African States.
June 20 » The film Jaws is released in the United States, becoming the highest-grossing film of that time and starting the trend of films known as "summer blockbusters".
September 4 » The Sinai Interim Agreement relating to the Arab–Israeli conflict is signed.
October 16 » The Australian Coalition sparks a constitutional crisis when they vote to defer funding for the government's annual budget.
Day of burial November 18, 1975
The temperature on November 18, 1975 was between 3.0 °C and 9.7 °C and averaged 6.5 °C. There was 2.0 mm of rain during 1.9 hours. There was 3.7 hours of sunshine (43%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I547173.php : accessed January 28, 2026), "Jette Vilhelmine Norbergsen (1900-1975)".
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