January 12 » The National Trust is founded in the United Kingdom.
March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
April 24 » Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
October 22 » In Paris an express train derails after overrunning the buffer stop, crossing almost 30 metres (100ft) of concourse before crashing through a wall and falling 10 metres (33ft) to the road below.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage May 14, 1921
The temperature on May 14, 1921 was between 8.5 °C and 25.0 °C and averaged 16.3 °C. There was 10.5 hours of sunshine (67%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 19 » Irish War of Independence: One of the biggest engagements of the war takes place at Crossbarry, County Cork. About 100 Irish Republican Army (IRA) volunteers escape an attempt by over 1,300 British forces to encircle them.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
October 5 » The World Series is the first to be broadcast on radio.
October 8 » KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.
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/I188911.php : accessed October 24, 2026), "Matheus Haan (1895-????)".
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