The dating of Aboriginal Australian rock art depicting the contact between Makassan ships and indigenous Australians suggests that contact between the two communities existed at least a hundred years earlier than originally thought.
Australiaâ€™s rock art discovery – sailing vessels visit in mid-1600’s
Sail World.com, 25 July 2010
We have contact: rock art records early visitors
The Canberra Times, 24 July 2010