Sea archaeologists have found a wreck that they believe is HMS Endeavor off the coast of Rhode Island in northeastern America.
"We have only one side," said director Kathy Abbass today.
HMS Endeavor was the first British ship to land on Australian soil in 1770 under Captain James Cook.
After the Australian expedition, the ship was sold and became known as Lord Sandwich 2.
It then transported British troops into the American Revolutionary War and served as a floating prison.
In 1778, as French naval ships approached, the British sank 13 ships off Newport, Rhode Island, to serve as a barricade.
"We can say now, we think we know which one it is," Dr. Abbass.
Australian divers and researchers have worked with local teams to verify the site through tedious scientific analysis.
"It's slow, it's not easy," Australian marine archaeologist Dr. James Hunter.
"Visibility is about a meter."
The waters of Newport are known to many Australians as the place where Australia II won the America's Cup in 1983.
A boxing kangaroo flag still hangs in a pub just a few hundred yards from Endeavor's testing grounds, and a local bakery promotes "Aussie Meat Pies."
"To think that some of these big battles were over the Endeavor in the America's Cup is unbelievable," said Australian Consul General Alastair Walton.
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