Complex sentence: Kentucky's citizens were split regarding the issues central to the Civil War when the state had strong economic ties with Ohio River cities such as Pittsburgh and Cincinnati while at the same time sharing many cultural, social, and economic links with the South.
Split into simpler sentences: Kentucky's citizens were split regarding the issues central to the Civil War. The state had strong economic ties with Ohio River cities such as Pittsburgh and Cincinnati while at the same time sharing many cultural, social, and economic links with the South.