The Federated States of Micronesia are located on the Caroline Islands in the western Pacific Ocean. The ancestors of the Micronesians settled there over 4,000 years ago. A decentralized chieftain-based system eventually evolved into a more centralized economic and religious empire centered on Yap. European explorers--first the Portuguese in search of the Spice Islands (Indonesia) and then the Spanish--reached the Carolines in the 16th century, with the Spanish establishing sovereignty. The current FSM passed to German control in 1899, then to the Japanese in 1914, and finally to the United States under United Nations auspices in 1947 as part of the Trust Territory of the Pacific Islands.

On May 10, 1979, four of the Trust Territory districts ratified a new constitution to become the Federated States of Micronesia. The neighboring trust districts of Palau, the Marshall Islands, and the Northern Mariana Islands chose not to participate. The FSM signed a Compact of Free Association with the U.S., which entered into force on November 3, 1986, marking Micronesia's emergence from trusteeship to independence.

See also : Federated States of Micronesia