At the start of the twentieth century there were approximately 250,000 Native Americans in the USA – just 0.3 per cent of the population – most living on reservations where they exercised a limited degree of self-government. During the course of the nineteenth century they had been deprived of much of their land by forced removal westwards, by a succession of treaties (which were often not honoured by the white authorities) and by military defeat by the USA as it expanded its control over the American West.
The changes in policy towards the Indians occurred in 1850 (when the Federal Government Restricted Indians into smaller areas); in 1870 - when Nez Perce go moved and in 1887 when the Dawes Allotment Act was enacted.
The changes in the policy towards the Indians were exacerbated by the American Revolution.
Indian dispossession in Pennsylvania was accelerated.
This was probably because the Americans were now free from the restrains of the British Imperial Authority.
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