February 15 » The battleship USSMaine explodes and sinks in Havana harbor in Cuba, killing 274. This event leads the United States to declare war on Spain.
February 27 » King George I of Greece survives an assassination attempt.
April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
June 12 » Philippine Declaration of Independence: General Emilio Aguinaldo declares the Philippines' independence from Spain.
June 22 » Spanish–American War: In a chaotic operation, 6,000 men of the U.S. Fifth Army Corps begins landing at Daiquirí, Cuba, about 16 miles (26km) east of Santiago de Cuba. Lt. Gen. Arsenio Linares y Pombo of the Spanish Army outnumbers them two-to-one, but does not oppose the landings.
August 25 » Seven hundred Greek civilians, 17 British guards and the British Consul of Crete are killed by a Turkish mob in Heraklion, Greece.
Day of marriage May 20, 1927
The temperature on May 20, 1927 was between 3.2 °C and 16.2 °C and averaged 11.0 °C. There was 13.1 hours of sunshine (82%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
March 15 » The first Women's Boat Race between the University of Oxford and the University of Cambridge takes place on The Isis in Oxford.
May 9 » Old Parliament House, Canberra officially opens.
May 26 » The last Ford Model T rolls off the assembly line after a production run of 15,007,003 vehicles.
September 7 » The first fully electronic television system is achieved by Philo Farnsworth.
October 4 » Gutzon Borglum begins sculpting Mount Rushmore.
Day of death November 19, 1978
The temperature on November 19, 1978 was between 9.3 °C and 13.5 °C and averaged 11.0 °C. There was 1.6 mm of rain during 2.1 hours. There was 2.7 hours of sunshine (31%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-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 13 » United States Food and Drug Administration requires all blood donations to be labeled "paid" or "volunteer" donors.
February 16 » The first computer bulletin board system is created (CBBS in Chicago).
April 27 » Former United States President Nixon aide John D. Ehrlichman is released from an Arizona prison after serving 18 months for Watergate-related crimes.
April 28 » President of Afghanistan, Mohammed Daoud Khan, is overthrown and assassinated in a coup led by pro-communist rebels.
May 12 » In Zaire, rebels occupy the city of Kolwezi, the mining center of the province of Shaba (now known as Katanga); the local government asks the US, France and Belgium to restore order.
December 27 » Spain becomes a democracy after 40 years of fascist dictatorship.
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/I134949.php : accessed October 20, 2026), "Haaye Sietsma (1898-1978)".
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