Complex sentence: The Wealden iron industry flourished here in the 17th/18th centuries; and with the coming of the railway in 1855 brought more employment to the area: the line closed in 1967.
Split into simpler sentences: The Wealden iron industry flourished here in the 17th/18th centuries. The coming of the railway in 1855 brought more employment to the area: the line closed in 1967.