May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
June 11 » A group of Serbian officers stormed the royal palace and assassinated King Alexander Obrenović and his wife, Queen Draga.
July 1 » Start of first Tour de France bicycle race.
July 4 » The Philippine–American War is officially concluded.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
December 30 » A fire at the Iroquois Theater in Chicago, Illinois kills at least 605.
Day of death December 23, 1980
The temperature on December 23, 1980 was between 7.2 °C and 11.3 °C and averaged 9.4 °C. There was 2.5 mm of rain during 1.5 hours. There was 0.2 hours of sunshine (3%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
February 29 » Gordie Howe of the Hartford Whalers makes NHL history as he scores his 800th goal.
April 9 » The Iraqi regime of Saddam Hussein kills philosopher Muhammad Baqir al-Sadr and his sister Bint al-Huda after three days of torture.
July 8 » The inaugural 1980 State of Origin game is won by Queensland who defeat New South Wales 20–10 at Lang Park.
August 26 » After John Birges plants a bomb at Harvey's Resort Hotel in Stateline, Nevada, in the United States, the FBI inadvertently detonates the bomb during its disarming.
October 25 » Proceedings on the Hague Convention on the Civil Aspects of International Child Abduction conclude.
December 1 » Ecatepec, State of Mexico, Mexico, becomes a city.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I13397.php : accessed May 3, 2025), "Gerhardus Jacobus Hercules Dreyer g1h3 (1903-1980)".
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