Complex sentence: Middle Plantation represented the first major inland settlement for the colony and was established by an Act of Assembly to provide a link between Jamestown and Chiskiack, a settlement located across the Peninsula on the York River.
Split into simpler sentences: Middle Plantation represented the first major inland settlement for the colony. It was established by an Act of Assembly to provide a link between Jamestown and "Chiskiack", a settlement located across the Peninsula on the York River.