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.
June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
June 11 » The Hundred Days' Reform, a planned movement to reform social, political, and educational institutions in China, is started by the Guangxu Emperor, but is suspended by Empress Dowager Cixi after 104 days. (The failed reform led to the abolition of the Imperial examination in 1905.)
August 12 » The Hawaiian flag is lowered from ʻIolani Palace in an elaborate annexation ceremony and replaced with the flag of the United States to signify the transfer of sovereignty from the Republic of Hawaii to the United States.
August 13 » Carl Gustav Witt discovers 433 Eros, the first near-Earth asteroid to be found.
October 18 » The United States takes possession of Puerto Rico from Spain.
Day of marriage April 25, 1919
The temperature on April 25, 1919 was between 2.1 °C and 9.9 °C and averaged 6.3 °C. There was 0.1 mm of rain. There was 3.4 hours of sunshine (23%). 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 18 » Ignacy Jan Paderewski becomes Prime Minister of the newly independent Poland.
February 14 » The Polish–Soviet War begins.
March 2 » The first Communist International meets in Moscow.
May 15 » Greek occupation of Smyrna. During the occupation, the Greek army kills or wounds 350 Turks; those responsible are punished by Greek commander Aristides Stergiades.
May 29 » Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin
June 28 » The Treaty of Versailles is signed, ending the state of war between Germany and the Allies of World War I.
Day of death August 30, 1940
The temperature on August 30, 1940 was between 6.2 °C and 16.9 °C and averaged 11.8 °C. There was 6.2 hours of sunshine (45%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
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.
When copying data from this family tree, please include a reference to the origin: Jaap Geensen, "Geensen database", database, Genealogy Online (https://www.genealogieonline.nl/geensen-database/I1876.php : accessed December 28, 2025), "Jannetje "Jenny" Geense (1898-1940)".
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