In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
May 4 » Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.
May 29 » The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.
June 10 » Mount Tarawera in New Zealand erupts, killing 153 people and burying the famous Pink and White Terraces. Eruptions continue for three months creating a large, 17km long fissure across the mountain peak.
June 30 » The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4.
July 3 » Karl Benz officially unveils the Benz Patent-Motorwagen, the first purpose-built automobile.
November 30 » The Folies Bergère stages its first revue.
Day of marriage April 20, 1916
The temperature on April 20, 1916 was between 4.9 °C and 10.6 °C and averaged 6.7 °C. There was 8.9 mm of rain. There was 2.8 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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 10 » World War I: In the Erzurum Offensive, Russia defeats the Ottoman Empire.
January 27 » World War I: The British government passed a legislation that introduced conscription in the United Kingdom.
March 15 » United States President Woodrow Wilson sends 4,800 United States troops over the U.S.–Mexico border to pursue Pancho Villa.
July 1 » World War I: First day on the Somme: On the first day of the Battle of the Somme 19,000 soldiers of the British Army are killed and 40,000 wounded.
July 19 » World War I: Battle of Fromelles: British and Australian troops attack German trenches as part of the Battle of the Somme.
September 3 » World War I: Leefe Robinson destroys the German airship Schütte-Lanz SL 11 over Cuffley, north of London; the first German airship to be shot down on British soil.
Day of death July 20, 1941
The temperature on July 20, 1941 was between 10.3 °C and 21.1 °C and averaged 14.9 °C. There was 0.1 mm of rain during 0.1 hours. There was 4.0 hours of sunshine (25%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P14215.php : accessed February 23, 2026), "Otto von Salm-Hoogstraeten (1886-1941)".
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