Complex sentence: A further point of historical interest is that the nearby Sankey Viaduct passes over the former Sankey Canal-thus at this point, one of the earliest passenger railways crosses the first canal of the industrial revolution.
Split into simpler sentences: A further point of historical interest is that the nearby Sankey Viaduct passes over the former Sankey Canal. Thus, at this point, one of the earliest passenger railways crosses the first canal of the industrial revolution.