The United States Senate ratifies the Treaty of Paris, on February 6, 1899, by a margin of only one vote, officially ending the Spanish-American War.
The Treaty had been formally signed in Paris on December 10, 1898; it granted independence to Cuba, while ceding Guam, Puerto Rico, and the Philippines to the United States. Prior to that, on August 12, 1898, an armistice had been signed by the U.S. and Spain, bringing an end to the actual fighting in the war. Spanish - American War Historical Timeline