Complex sentence: The 156 began on the 23rd April 1983, the route served between Morden Station and Clapham Junction (Grant Road), the route was introduced as a replacement for sections of the 77A (now 87) and M1 which were withdrawn at the same time.
Split into simpler sentences: The 156 began on the 23rd April 1983 between Morden Station and Clapham Junction (Grant Road). It was introduced as a replacement for sections of the 77A (now 87) and M1 which were withdrawn at the same time.