Two Australian warships, the HMAS Melbourne and the HMAS Voyager, collided off the New South Wales coast.
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The USS Constitution set sail for the first time in 116 years.
The Titanic of New England, the SS Portland, sunk off the coast of Maine.
Passenger ferry Estonia sinks, killing 852.
The crew of the Union Star lost their lives along with all eight lifeboat volunteers who tried to save them.
Christopher Cockerell first presents the hovercraft.
