January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
July 28 » The city of Miami, Florida is incorporated.
November 17 » The Western Pennsylvania Hockey League, which later became the first ice hockey league to openly trade and hire players, began play at Pittsburgh's Schenley Park Casino.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
Day of marriage June 20, 1916
The temperature on June 20, 1916 was between 5.9 °C and 16.2 °C and averaged 11.2 °C. There was 8.7 hours of sunshine (52%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
February 27 » Ocean liner SS Maloja strikes a mine near Dover and sinks with the loss of 155 lives.
May 31 » World War I: Battle of Jutland: The British Grand Fleet engages the High Seas Fleet in the largest naval battle of the war, which proves indecisive.
June 5 » World War I: The Arab Revolt against the Ottoman Empire breaks out.
November 5 » The Kingdom of Poland is proclaimed by the Act of 5th November of the emperors of Germany and Austria-Hungary.
November 18 » World War I: First Battle of the Somme: In France, British Expeditionary Force commander Douglas Haig calls off the battle which started on July 1, 1916.
November 30 » Costa Rica signs the Buenos Aires Convention, a copyright treaty.
Day of death January 21, 1969
The temperature on January 21, 1969 was between 4.1 °C and 7.9 °C and averaged 6.1 °C. There was 0.7 mm of rain during 2.9 hours. There was 1.7 hours of sunshine (20%). The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 25 » Brazilian Army captain Carlos Lamarca deserts in order to fight against the military dictatorship, taking with him ten machine guns and 63 rifles.
May 18 » Apollo program: Apollo 10 is launched.
May 20 » The Battle of Hamburger Hill in Vietnam ends.
August 12 » Violence erupts after the Apprentice Boys of Derry march in Derry, Northern Ireland, resulting in a three-day communal riot known as the Battle of the Bogside.
September 5 » My Lai Massacre: U.S. Army Lieutenant William Calley is charged with six specifications of premeditated murder for the death of 109 Vietnamese civilians in My Lai.
December 4 » Black Panther Party members Fred Hampton and Mark Clark are shot and killed during a raid by 14 Chicago police officers.
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/I21462.php : accessed February 20, 2026), "Magtel Gertruida Anna Maria Dreyer (1896-1969)".
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