Complex sentence: The Aro-Ibibio wars and the migration of the Akpa from east of the Cross River, formed the nation during the turning point of the 17th century to the 18th century.
Split into simpler sentences: The Aro-Ibibio wars and the migration of the Akpa from east of the Cross River, formed the nation. This began during the turning point of the 17th century to the 18th century.