Complex sentence: Route 190 was established in 1932 as a route between the state line at Southwick and the town of Enfield, which was later extended eastward to Union and truncated in the west to Suffield center.
Split into simpler sentences: Route 190 was established in 1932 as a route between the state line at Southwick and the town of Enfield. The route was later extended eastward to Union but was truncated in the west to Suffield center.