In the Australian Curriculum: History, a word or phrase used to describe an abstract aspect or feature of the past (for example, colonisation, revolution, imperialism, democracy) and more specific features (for example, pyramid, gladiator, temple, rock shelter).
A concept in international law meaning 'a territory belonging to no-one' or 'over which no-one claims ownership'. The concept has been used to justify the colonisation of Australia. Also see native title.