April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
April 25 » Spanish–American War: The United States declares war on Spain.
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 25 » Spanish-American War: The American invasion of Spanish-held Puerto Rico begins, as United States Army troops under General Nelson A. Miles land and secure the port at Guánica.
October 18 » The United States takes possession of Puerto Rico from Spain.
November 3 » France withdraws its troops from Fashoda (now in Sudan), ending the Fashoda Incident.
Day of marriage December 30, 1924
The temperature on December 30, 1924 was between 2.1 °C and 7.9 °C and averaged 5.8 °C. There was 6.9 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 5 » The Royal Greenwich Observatory begins broadcasting the hourly time signals known as the Greenwich Time Signal.
March 16 » In accordance with the Treaty of Rome, Fiume becomes annexed as part of Italy.
April 1 » The Royal Canadian Air Force is formed.
June 26 » The American occupation of the Dominican Republic ends after eight years.
August 28 » The Georgian opposition stages the August Uprising against the Soviet Union.
October 27 » The Uzbek SSR is founded in the Soviet Union.
Day of death June 19, 1980
The temperature on June 19, 1980 was between 9.6 °C and 16.8 °C and averaged 13.7 °C. There was 3.2 mm of rain during 1.1 hours. There was 0.2 hours of sunshine (1%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
March 27 » Silver Thursday: A steep fall in silver prices, resulting from the Hunt Brothers attempting to corner the market in silver, leads to panic on commodity and futures exchanges.
April 12 » The Americo-Liberian government of Liberia is violently deposed.
June 3 » The 1980 Grand Island tornado outbreak hits Nebraska, causing five deaths and $300million (equivalent to $931million in 2019) worth of damage.
July 29 » Iran adopts a new "holy" flag after the Islamic Revolution.
October 17 » As part of the Holy See–United Kingdom relations a British monarch makes the first state visit to the Vatican.
October 25 » Proceedings on the Hague Convention on the Civil Aspects of International Child Abduction conclude.
When copying data from this family tree, please include a reference to the origin: Y. Slobbé, "Family tree Slobbé", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-slobbe/R9367.php : accessed January 27, 2026), "Hendrik Roels Walda (1898-1980)".
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