In 1526, the first spanish settlement on mainland america was established on what is today known as georgia. fourteen years later, hernando de soto led explorations through the area. by 1566, spanish forts were built all along the atlantic coast, including the first on georgia's st. catherine's island. during the century in which these events occurred, the creek nation controlled most of georgia's land. according to the passage above, which statement below is true? the creek nation controlled most of georgia's land during the 16th century. the first colony on mainland america wa