February 15 » The battleship USSMaine explodes and sinks in Havana harbor in Cuba, killing 274. This event leads the United States to declare war on Spain.
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.)
July 1 » Spanish–American War: The Battle of San Juan Hill is fought in Santiago de Cuba, Cuba.
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 25 » Seven hundred Greek civilians, 17 British guards and the British Consul of Crete are killed by a Turkish mob in Heraklion, Greece.
November 3 » France withdraws its troops from Fashoda (now in Sudan), ending the Fashoda Incident.
Day of death August 22, 1898
The temperature on August 22, 1898 was about 23.8 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 84%. Source: KNMI
January 1 » New York, New York annexes land from surrounding counties, creating the City of Greater New York. The four initial boroughs, Manhattan, Brooklyn, Queens, and The Bronx, are joined on January 25 by Staten Island to create the modern city of five boroughs.
May 1 » Spanish–American War: Battle of Manila Bay: The Asiatic Squadron of the United States Navy destroys the Pacific Squadron of the Spanish Navy after a seven-hour battle. Spain loses all seven of its ships, and 381 Spanish sailors die. There are no American vessel losses or combat deaths.
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.
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.
December 26 » Marie and Pierre Curie announce the isolation of radium.
When copying data from this family tree, please include a reference to the origin: Yvo Over, "Family tree Over", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-over/I758.php : accessed February 5, 2026), "Hendrikus Wilhelmus Wallert (1898-1898)".
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