http://slideplayer.com/4169692/13/images/33/This+photograph+shows+the+much+restored+Slater+Mill%2C+the+first+cotton+textile+factory+in+the+United+States%2C+and+the+falls+that+powered+its+machinery.+Built+in+1793%2C+the+mill%E2%80%94now+a+National+Historic+Landmark%E2%80%94is+an+example+of+the+way+early+entrepreneurs+used+the+power+potential+of+New+England%E2%80%99s+swiftly+flowing+streams..jpg