Complex sentence: Birkenhead grew quickly in the 19th century following the introduction of the wooden paddle steamer "Elizabeth" in 1815, and docks were developed along with a shipbuilding industry, flour milling and soap manufacture on the river's Cheshire bank.
Split into simpler sentences: Birkenhead grew quickly in the 19th century following the introduction of the wooden paddle steamer "Elizabeth" in 1815. Docks were developed along with a shipbuilding industry, flour milling and soap manufacture on the river's Cheshire bank.