<human>:  With regards to the history of ship building, who invented the first iron ship?
<bot>: The first iron ship was built in the late 19th century. It was called the SS Great Eastern. It was the largest and most advanced ship of its time, and it was the first ship to use steam turbines instead of sails. The Great Eastern was built by Isambard Kingdom Brunel, who is best known for his design of the SS Great Britain, which was the largest and fastest passenger ship of its time.