At one time virtually every zipper in the world was manufactured by the Talon zipper company in Meadville, Pennsylvania. This handy replacement for the button closure originally was invented and patented in 1893 as the “hookless fastener” by Whitcomb L. Judson in Chicago. Although its early value was apparent in boots and shoes, the zipper was too complicated and difficult to mass produce—until Colonel Lewis Walker, an attorney and graduate of Allegheny College, saw its vast potential in apparel and military applications, not just in footwear.

Free Inquiry and Expression: From Principles to Educational Practice
Hundreds of colleges and universities have adopted free expression and institutional speech documents from the University of Chicago. In 1899, the University of Chicago faculty unanimously resolved that complete freedom


