Between 1668 and 1815, Guam was an important resting stop for the Spanish Manila galleons, a fleet that covered the Pacific trade route between Acapulco(Mexico) and Manila (Philippines). Guam, along with the rest of the Mariana and Caroline Islands, were treated as part of Spain's colony in the Philippines. While Guam's Chamorro culture is unique, the cultures of both Guam and the Northern Marianas were heavily influenced by Spanish culture and traditions during their 333 years of rule.8 - The Spanish-American War and World War II