July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage July 6, 1916
The temperature on July 6, 1916 was between 11.6 °C and 18.4 °C and averaged 14.6 °C. There was 0.4 mm of rain. There was 0.7 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 12 » Both Oswald Boelcke and Max Immelmann, for achieving eight aerial victories each over Allied aircraft, receive the German Empire's highest military award, the Pour le Mérite as the first German aviators to earn it.
January 29 » World War I: Paris is first bombed by German zeppelins.
February 21 » World War I: In France, the Battle of Verdun begins.
August 25 » The United States National Park Service is created.
September 27 » Iyasu V is proclaimed deposed as ruler of Ethiopia in a palace coup in favor of his aunt Zewditu.
December 29 » A Portrait of the Artist as a Young Man, the first novel by James Joyce, was first published as a book by an American publishing house B. W. Huebschis after it had been serialized in The Egoist (1914–15).
Day of death November 21, 1980
The temperature on November 21, 1980 was between 10.9 °C and 12.6 °C and averaged 11.8 °C. There was -0.1 hours of sunshine (0%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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 17 » First winter ascent of Mount Everest by Krzysztof Wielicki and Leszek Cichy.
April 18 » The Republic of Zimbabwe (formerly Rhodesia) comes into being, with Canaan Banana as the country's first President. The Zimbabwean dollar replaces the Rhodesian dollar as the official currency.
July 8 » The inaugural 1980 State of Origin game is won by Queensland who defeat New South Wales 20–10 at Lang Park.
August 27 » A massive bomb planted by extortionist John Birges explodes at Harvey's Resort Hotel in Stateline, Nevada after a failed disarming attempt by the FBI. Although the hotel is damaged, no one is injured.
November 4 » Ronald Reagan is elected the 40th President of The United States, defeating incumbent Jimmy Carter.
November 21 » A deadly fire breaks out at the MGM Grand Hotel in Paradise, Nevada (now Bally's Las Vegas). Eighty-seven people are killed and more than 650 are injured in the worst disaster in Nevada history.
Day of burial November 25, 1980
The temperature on November 25, 1980 was between 6.5 °C and 12.2 °C and averaged 8.8 °C. There was 0.2 mm of rain during 0.2 hours. There was 0.2 hours of sunshine (2%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) 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.
When copying data from this family tree, please include a reference to the origin: Alle Elbers, "Sluzigers (e.a.)", database, Genealogy Online (https://www.genealogieonline.nl/sluzigers/I137159.php : accessed February 11, 2026), "Bartha Mastebroek (1897-1980)".
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