April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
Day of marriage February 6, 1920
The temperature on February 6, 1920 was between -1.2 °C and 7.0 °C and averaged 1.9 °C. There was 7.8 hours of sunshine (83%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
January 10 » League of Nations Covenant enters into force. On January 16 the organization holds its first council meeting, in Paris.
March 28 » Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states.
April 28 » Azerbaijan is added to the Soviet Union.
May 16 » In Rome, Pope Benedict XV canonizes Joan of Arc.
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
December 19 » King Constantine I is restored as King of the Hellenes after the death of his son Alexander of Greece and a plebiscite.
Day of death July 30, 1921
The temperature on July 30, 1921 was between 12.3 °C and 21.2 °C and averaged 16.3 °C. There was 9.4 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) 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.
January 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
February 27 » The International Working Union of Socialist Parties is founded in Vienna.
May 3 » The Government of Ireland Act 1920 is passed, dividing Ireland into Northern Ireland and Southern Ireland.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
When copying data from this family tree, please include a reference to the origin: Dick Revers, "Family tree Blitterswijk", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-blitterswijk/I45.php : accessed February 5, 2026), "Hendrik Johannes van Blitterswijk (1897-1921)".
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