Key term for AQA GCSE History, used in America: Expansion and Consolidation (1840–1895).
The artificial application of water to land to assist in the production of crops, which was the technological key to Mormon survival in the Salt Lake Valley.
Irrigation appears in AQA GCSE History revision content for Period Studies, especially America: Expansion and Consolidation (1840–1895) and Early Settlers and Challenges.
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