Captain James Cook(1728-1779). Nathaniel Dance. BHC2628 Did Columbus really discover America? A single Norse coin suggests otherwise. Did Captain James Cook discover Australia? Well, an African coin may also suggest otherwise–actually, several coins. It is certain Cook reached Botany Bay in what is today Sydney in 1770. He claimed the continent for Great Britain, declaring the continent “terra nullius.” The first Englishman known to have physically landed on the Australian mainland was former pirate William Dampier (1651-1715). Since that time, accolades have been heaped on Cook for his discovery. The evidence is slim, but it is looking more and more like Australia was visited by any number of people following the time the aboriginal natives settled there between 40,000 and 60,000 years ago and when Cook first arrived during the late 18 th century. The aboriginal settlers likely originated from the Malay Archipelago. French navigator Binot Paulmier de Gonneville claimed to ha...