Key term for AQA GCSE History, used in America: Expansion and Consolidation (1840–1895).
An 1851 policy that aimed to limit Native American tribes to specific territories to reduce conflict with white settlers travelling west.
Concentration appears in AQA GCSE History revision content for Period Studies, especially America: Expansion and Consolidation (1840–1895) and Resolution of 'The Indian Problem'.
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