Key term for OCR GCSE History B, used in Settlement and conflict on the Plains 1861–1877.
A self-governing windmill used to pump water from deep underground sources on the Plains, invented by Daniel Halladay.
Wind pump appears in OCR GCSE History B revision content for The Making of America (1789–1900), especially Settlement and conflict on the Plains 1861–1877 and Homesteaders.
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