Evidence of human activity in South Australia dates back as far as 20,000 years, with flint mining activity and rock art in the Koonalda Cave on the Nullarbor Plain. In addition wooden spears and tools were made in an area now covered in peat bog in the South East. Kangaroo Island was inhabited long before the island was cut off by rising sea levels

The first recorded European sighting of the South Australian coast was in 1627 when the Dutch ship the Gulden Zeepaert, captained by François Thijssen, examined and mapped a section of the coastline as far east as the Nuyts Archipelago. Thijssen named his discovery “Pieter Nuyts Land”, after the highest ranking individual on board.[citation needed]

The complete coastline of South Australia was first mapped by Matthew Flinders and Nicolas Baudin in 1802.