Complex sentence: The history of human habitation in and around Pettigrew State Park stretches back as far as 8000 BC. Archaelogists have found thousands of relics at the park, including pottery, arrowheads, and sunken dugout canoes.
Split into simpler sentences: The history of human habitation in and around Pettigrew State Park stretches back as far as 8000 BC. Archaelogists have found thousands of relics at the park. They've found pottery, arrowheads, and sunken dugout canoes.