-The cotton gin animates the American imagination in unique ways. It evokes no images of antique machinery or fluffy fiber but rather scenes of victimized slaves and battlefield dead. It provokes the suspicion that had Eli Whitney never invented the gin, United States history would have been somehow different. Yet cotton gins existed for centuries before Whitney invented his gin in 1794. Nineteenth-century scholars overlooked them as well as gins made by southern--and northern--mechanics, in order to create a history meant to chasten some southerners and demean others. Using the gin as...