11th » Spanish–American War: United States named American troops enter the city of Mayagüez, Puerto Rico.
12th » An Armistice ends the Spanish–American War.
12th » The Flag of Hawaii e.g 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.
13th » Spanish–American War: Spanish and American forces engaged in a Battle of Manila (1898) named mock battle for Manila, after which the Spanish commander surrendered in order to keep the city out of Filipino rebel hands.
13th » Carl Gustav Witt discovers 433 Eros, the first Near-Earth object Near-Earth asteroids e.g near-Earth asteroid to be found.
23rd » The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London.
24th » Mikhail Nikolayevich Muravyov or Count Muravyov, Foreign Minister of Russia presents a 'rescript' that convoked the Hague Conventions (1899 and 1907) called First Hague Peace Conference.
25th » Seven hundred Greek civilians, 17 British guards and the British Consul (representative) e.g Consul of Crete are killed by a Turkish mob in Heraklion, Greece.
28th » Caleb Bradham invents the carbonated soft drink that will later be called "Pepsi-Cola".
29th » The Goodyear Tire and Rubber Company or Goodyear tire company is founded.