Lead: One hundred and fifty years ago the Republic was facing its greatest crisis. This continuing series examines the American Civil War. It is "A House Divided."

Intro.: A Moment in Time with Dan Roberts.

Content: With the fall of Fort Donelson on the Cumberland River on February 16, 1862, the North had a new hero. U.S. or “Unconditional Surrender” Grant, named for his demand that the garrison at Fort Donelson give up immediately with no conditions, was promoted to Major General and gradually began to orchestrate the collapse of Confederate control of western Tennessee and northern Mississippi. In short order Union forces swept out of Kentucky into Middle Tennessee, forcing the evacuation of Nashville and the fall of the first Confederate state capital.