Complex sentence: Hadspen was an important stop on the coach route from Launceston to Deloraine from at least the 1840s, though this suffered a decline when rail transport started in Tasmania in the late 1860s.
Split into simpler sentences: Hadspen was an important stop on the coach route from Launceston to Deloraine from at least the 1840s. The coach service declined from when rail transport started in Tasmania in the late 1860s.