in 1976, the australian government agreed that aboriginal people have rights to the land where their tribes were originally located and gained the right to use the land. on 3 june, 1992, the high court of australia said that the idea of "terra nullius" was wrong, and the government brought in new laws, to set up native title. if aboriginal people can prove they have always used particular land, it has not been sold, or changed by government acts, then the land could be claimed as aboriginal land.