January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
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.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
November 7 » Second Boer War: Battle of Leliefontein, a battle during which the Royal Canadian Dragoons win three Victoria Crosses.
Day of death June 30, 1980
The temperature on June 30, 1980 was between 11.8 °C and 18.1 °C and averaged 14.5 °C. There was 1.2 mm of rain during 2.4 hours. There was 5.6 hours of sunshine (34%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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 17 » First winter ascent of Mount Everest by Krzysztof Wielicki and Leszek Cichy.
February 28 » Andalusia approves its statute of autonomy through a referendum.
May 13 » An F3 tornado hits Kalamazoo County, Michigan. President Jimmy Carter declares it a federal disaster area.
August 19 » Saudia Flight 163, a Lockheed L-1011 TriStar burns after making an emergency landing at King Khalid International Airport in Riyadh, Saudi Arabia, killing 301 people.
September 22 » Iraq invades Iran.
October 26 » The Peter Muhlenberg Memorial in Washington, D.C. is dedicated.
When copying data from this family tree, please include a reference to the origin: Wicher Dam, "Dambomen, negen verschillende stambomen DAM", database, Genealogy Online (https://www.genealogieonline.nl/dambomen/I653.php : accessed December 31, 2025), "Jan Bakker (1900-1980)".
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