Archaeologists hope to unravel the mystery of how coins dating back to the 10th century were found off the shores of Australia.

Ian McIntosh, professor of anthropology at Indiana University, will be leading an archaeological search on an island in northern Australia in order to see if evidence of a medieval settlement can be found. This was the same place that nearly seventy years ago several coins were discovered that date back as far as the year 900 AD.

The coins raise the possibility of shipwrecks that may have occurred along an early maritime trading route and bring to mind the ancient trading network that linked East Africa, Arabia, India and the Spice Islands over 1,000 years ago. Aboriginal folklore also speaks of a hidden cave near where the coins were found that is filled with doubloons and weaponry of an ancient era....