Complex sentence: In 1565 a small fort at St. Augustine, Florida, was founded by the Spanish, and in 1607 a small band of settlers built England's first permanent settlement in what was to become the United States at Jamestown.
Split into simpler sentences: In 1565 a small fort at St. Augustine, Florida, was founded by the Spanish. In 1607 a small band of settlers built England's first permanent settlement in what was to become the United States at Jamestown.