20th Century
In the 20th century, the internal combustion engine and gas turbine came to replace the steam engine in most ship applications. Trans-oceanic travel, transatlantic and transpacific, was a particularly important application, with steam powered Ocean liners replacing sailing ships, then culminating in the massive Superliners which included the RMS Titanic. The event with the Titanic lead to the Maritime Distress Safety System.
Read more about this topic: Maritime History