Academics have long believed that the first people to arrive in Australia were Europeans  But studies have pointed out that East Africans from what is today Tanzania were the first to reach Australia  Archaeologists have discovered a coin from the central African trading city of Kilwa (now Tanzania) on Elko Island in Australia
As a result, it has been suggested that East Africans may have arrived in Australia hundreds of years before the first European explorers
The Portuguese attacked Kilwa and Elko in 1505 and left behind this coin