June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
July 1 » Spanish–American War: The Battle of San Juan Hill is fought in Santiago de Cuba, Cuba.
July 8 » The death of crime boss Soapy Smith, killed in the Shootout on Juneau Wharf, releases Skagway, Alaska from his iron grip.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
August 24 » Count Muravyov, Foreign Minister of Russia presents a rescript that convoked the First Hague Peace Conference.
October 18 » The United States takes possession of Puerto Rico from Spain.
Day of marriage May 31, 1919
The temperature on May 31, 1919 was between 8.2 °C and 23.0 °C and averaged 15.4 °C. There was 12.9 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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 21 » The Hungarian Soviet Republic is established becoming the first Communist government to be formed in Europe after the October Revolution in Russia.
May 29 » Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin
June 23 » Estonian War of Independence: The decisive defeat of the Baltische Landeswehr in the Battle of Cēsis; this date is celebrated as Victory Day in Estonia.
July 11 » The eight-hour day and free Sunday become law for workers in the Netherlands.
December 21 » American anarchist Emma Goldman is deported to Russia.
Day of death January 11, 1964
The temperature on January 11, 1964 was between -4.3 °C and -0.7 °C and averaged -3.0 °C. There was 0.2 mm of rain during 0.6 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 9 » Martyrs' Day: Several Panamanian youths try to raise the Panamanian flag in the U.S.-controlled Panama Canal Zone, leading to fighting between U.S. military and Panamanian civilians.
February 1 » The Beatles have their first number one hit in the United States with "I Want to Hold Your Hand".
February 9 » The Beatles make their first appearance on The Ed Sullivan Show, performing before a "record-busting" audience of 73 million viewers across the USA.
May 2 » First ascent of Shishapangma, the fourteenth highest mountain in the world and the lowest of the Eight-thousanders.
July 31 » Ranger program: Ranger 7 sends back the first close-up photographs of the moon, with images 1,000 times clearer than anything ever seen from earth-bound telescopes.
August 27 » South Vietnamese junta leader Nguyễn Khánh enters into a triumvirate power-sharing arrangement with rival generals Trần Thiện Khiêm and Dương Văn Minh, who had both been involved in plots to unseat Khánh.
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/I75842.php : accessed December 29, 2025), "Roelof Boersma (1898-1964)".
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