Complex sentence: Charles Brockden Brown (January 17,1771--February 22,1810), an American novelist, historian, and editor of the Early National period, is generally regarded by scholars as the most important American novelist before James Fenimore Cooper.
Split into simpler sentences: Charles Brockden Brown (January 17,1771--February 22,1810) was an American novelist, historian, and editor of the Early National period. He is generally regarded by scholars as the most important American novelist before James Fenimore Cooper.