In 1533, the Bom Jesus—a Portuguese trading vessel carrying 40 tons of cargo including gold, silver, copper and more than 100 elephant tusks—sank off the coast of Africa near present-day Namibia. The wreck was found in 2008, and scientists say they now have determined the source of much of the ivory recovered from the ship.
Click here for original story, Study tracks elephant tusks from 16th century shipwreck
Source: Phys.org