In 2005, when the salvage company investigated the sunken ship in the sea area of Nanchuan Island, it accidentally found an ancient sunken ship containing Chinese porcelain, which was located on the sedimentary layer of the seabed  According to the survey, the seabed sediment of Nanchuan island was formed in 1000 A D  therefore, underwater archaeologists believe that the sunken ship could not be the Conquest that sailed to Nanchuan island in 850 A
The sunken ship found in the seabed sediment of Nanchuan island may have fallen on the sediment after resting on the seabed reef for hundreds of years.
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