Complex sentence: He built a home called Tusculum some eight miles south of Nashville and soon added two log offices, where he trained young men for the law in what may have been the first "law school" in the Old Southwest.
Split into simpler sentences: He built a home called Tusculum some eight miles south of Nashville and soon added two log offices. There he trained young men for the law in what may have been the first "law school" in the Old Southwest.