Indigenous communities, peoples, and nations are those which have a historical continuity with pre-invasion and pre-colonial societies that developed on their territories, and may consider themselves distinct from other sectors of the societies now prevailing on those territories, or parts of them. They form at present non-dominant sectors of society and are determined to preserve, develop and transmit to future generations their ancestral territories, and their ethnic identity, as the basis of their continued existence as peoples, in accordance with their own cultural patterns, social institutions and legal system.