The Frankenmuth Woolen Mill, a Michigan Centennial Business, is recognized as the oldest continuously operated woolen mill in Michigan. Its original mill structure, first opened in October 1894, is still in use and remains the same today. A contract to produce 66,000 pairs of socks, mitts, and leg wraps for American troops during World War I was a boon for the company and made it the town’s largest employer. Today, using much of its original equipment, the Frankenmuth Woolen Mill is one of the largest producers of wool bedding in the United States.