Original sentence: Except for a relatively short periods in its history, the Tamil region remained independent of external occupation and was governed by natives of the region.Throughout its history, spanning from the early Palaeolithic age to the modern time, this region has had peaceful coexistance with various external cultures
Edited sentence: Except for a few relatively short periods during its history, kings who were natives of the region ruled Tamil Nadu.Throughout its history, spanning from the early Palaeolithic age to the modern time, this region has maintained the uniqueness of its culture and practices while absorbing and coexisting with various external cultures and influences