Twentieth Century
At the start of the century 25% of the world's trade was through British ports, 18% of this being to North America. Trans-oceanic travel was important at the start of the century with transatlantic liners competing for the "Blue Riband" for the fastest crossing. A significant event was the sinking of the Titanic in 1912. This led to the Global Maritime Distress Safety System and to the Iceberg Patrol. The rise of air travel led to a decrease in ocean travel but then, towards the end of the century, cruise ships became important again.
During the 20th century new types of cargo ships appeared - the container ship, the oil tanker and the gas container ship. Specialised ports for handling these were also developed.
Most warships used steam propulsion until the advent of the gas turbine in the mid part of the period. Steamships were superseded by diesel-driven cargo ships in the second half of the century. Submarines were mainly powered by a combination of diesel and batteries until the advent of nuclear marine propulsion in 1955.
There were two major wars against Germany and its allies that saw a massive expansion in naval fleets and the use of air power at sea, resulting in the construction of aircraft carriers that became the main centre of sea power. Both wars saw massive destruction of the British merchant fleet but new construction exceeded the rate of destruction. After World War II there was an initial drop in warship numbers but then the rise of the Soviet naval threat resulted in the Cold War with the construction of new warships and submarines. The reduction of the Soviet threat at the end of the century was offset by threats from other sources and piracy as well as sea-borne drug trafficking.
Cod War, offshore oil, gas and wind farms. Exploitation of wave power was started.
Read more about this topic: Maritime History Of The United Kingdom, Chronology
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