Complex sentence: The economic and political differences between western and eastern Virginia began to grow, and following Virginia's secession from the Union in 1861, the Restored Government of Virginia was established at Wheeling during the American Civil War.
Split into simpler sentences: The economic and political differences between western and eastern Virginia began to grow. Following Virginia's secession from the Union in 1861, the Restored Government of Virginia was established at Wheeling during the American Civil War.