Complex sentence: The first steam powered boats were introduced onto the Trent in 1814 by the Gainsborough Steam Packet Company, which operated a regular steam packet service using paddle-steamers from Hull to Gainsborough, the "Calendonia" making her maiden passage in October of that year.
Split into simpler sentences: The first steam powered boats were introduced onto the Trent in 1814 by the Gainsborough Steam Packet Company, which operated a regular steam packet service using paddle-steamers from Hull to Gainsborough. The paddle-sloop "Calendonia" making her maiden passage in October of that year.