The indigenous people of Guam are Chamorros, who settled here about 3,500 years ago.

Occupied by Spain since 1564. In the following 100 years, Americans and Japanese fought for this land. The United States seized Guam from Spain in the Spanish-American War of 1898.

In World War II 194 1 February, it was occupied by the Japanese army, and in July it was occupied by the American army.

After the war, the US Admiralty rebuilt the Guam military base.

1950, the United States declared Guam as its "unincorporated territory" with Algana as its capital.