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.
May 8 » The first games of the Italian football league system are played.
July 1 » Spanish–American War: The Battle of San Juan Hill is fought in Santiago de Cuba, Cuba.
July 7 » US President William McKinley signs the Newlands Resolution annexing Hawaii as a territory of the United States.
August 13 » Spanish–American War: Spanish and American forces engage in a mock battle for Manila, after which the Spanish commander surrendered in order to keep the city out of Filipino rebel hands.
August 24 » Count Muravyov, Foreign Minister of Russia presents a rescript that convoked the First Hague Peace Conference.
Day of death May 11, 1899
The temperature on May 11, 1899 was about 9.5 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 96%. Source: KNMI
July 11 » Fiat founded by Giovanni Agnelli in Turin, Italy.
July 17 » NEC Corporation is organized as the first Japanese joint venture with foreign capital.
September 13 » Henry Bliss is the first person in the United States to be killed in an automobile accident.
October 11 » The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
December 11 » Second Boer War: In the Battle of Magersfontein the Boers commanded by general Piet Cronjé inflict a defeat on the forces of the British Empire commanded by Lord Methuen trying to relieve the Siege of Kimberley.
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/I110696.php : accessed October 7, 2026), "Syt Slotegraaf (1898-1899)".
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