“On April 25, 1898 the United States declared war on Spain following the sinking of the Battleship Maine in Havana harbor… The war ended with the signing of the Treaty of Paris… As a result Spain lost its control over the remains of its overseas empire — Cuba, Puerto Rico, the Philippines Islands, Guam, and other islands.”
“The World of 1898: The Spanish-American War,” Library of Congress, LOC.gov