On 3 June, Australians commemorate Mabo Day, marking the anniversary of the historic Mabo decision.
Eddie Mabo of Mer island in the Torres Strait spent a decade seeking official recognition of his people’s ownership of Mer and on 3 June 1992, the High Court of Australia agreed, rejecting the doctrine that Australia was terra nullius (land belonging to no-one) at the time of European settlement.
with thanks to Indigenous.gov.au