There is considerable debate among historians about how and when the "terra nullius" concepts were used. The debate has been especially prevalent in Australia where it was ignited by the history wars caused by the Mabo case in 1992, a landmark decision which decided in favour of native title in Australia and was a pivotal moment in the history of indigenous land rights in Australia. The history wars caused Australian historians to reevaluate the country's history, the dispossession of Aboriginal Australians and whether the land should best be characterised as having been "settled" or "conquered". A part of this debate was over whether "terra nullius" was ever used by England and other European powers to justify territorial conquest.