Complex sentence: The rest of US 31E, from Glasgow to Nashville, was assigned U.S. Route 143; this proposed route was extended southwest to Centerville in 1938 and Jackson in 1944 via State Route 100 and State Route 20.
Split into simpler sentences: The rest of US-31E, from Glasgow to Nashville, was assigned the number U.S. Route 143. This route was extended southwest to Centerville in 1938 and Jackson, Tennesse, in 1944 via State Route 100 and State Route 20.