February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
July 9 » The Federation of Australia is given royal assent.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of marriage June 30, 1921
The temperature on June 30, 1921 was between 10.4 °C and 16.2 °C and averaged 12.8 °C. There was 0.3 hours of sunshine (2%). 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.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
March 17 » The Second Polish Republic adopts the March Constitution.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
July 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
July 11 » A truce in the Irish War of Independence comes into effect.
November 14 » The Communist Party of Spain is founded, and issues the first edition of Mundo obrero.
Day of death May 1, 1983
The temperature on May 1, 1983 was between 9.1 °C and 15.7 °C and averaged 11.1 °C. There was 12.1 mm of rain during 11.8 hours. There was 0.9 hours of sunshine (6%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 27 » The pilot shaft of the Seikan Tunnel, the world's longest sub-aqueous tunnel (53.85km) between the Japanese islands of Honshū and Hokkaidō, breaks through.
February 14 » United American Bank of Knoxville, Tennessee collapses. Its president, Jake Butcher, is later convicted of fraud.
June 4 » Gordon Kahl, who killed two US Marshals in Medina, North Dakota on February 13, is killed in a shootout in Smithville, Arkansas, along with a local sheriff, after a four-month manhunt.
July 7 » Cold War: Samantha Smith, a US schoolgirl, flies to the Soviet Union at the invitation of Secretary General Yuri Andropov.
September 12 » The USSR vetoes a United Nations Security Council Resolution deploring the Soviet destruction of Korean Air Lines Flight 007.
November 26 » Brink's-Mat robbery: In London, 6,800 gold bars worth nearly £26 million are stolen from the Brink's-Mat vault at Heathrow Airport.
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/I170219.php : accessed December 28, 2025), "Johannes Wilhelmus Kouffeld (1900-1983)".
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