In 1804, British Parliament approved the laying of a railway line between Swansea and Oystermouth in South Wales to move limestone from the quarries of Mumbles to Swansea and to the markets beyond. Later renamed the Swansea and Mumbles Railway, the line was approved to carry passengers in 1807. The world’s first regular passenger service began that same year and operated in one form or another for more than a century and a half before it was decommissioned. What powered the line’s first trains? Discuss