The history of Guam starts with the early arrival around 2000 BC of Austronesian people known today as the CHamorus. the CHamorus then developed a "pre-contact" society, that was Spanish colonized by the Spanish in the 17th century. The present American rule of the island began with the 1898 Spanish–American War.
Guam's history of colonialism is the longest among the Pacific islands and Chamorros are considered one of the oldest mixed race in the Pacific. In 1668 the Spanish formally incorporated the islands to the Spanish East Indies and founded a colony on Guam as a resting place for the west-bound Manila galleons .