The Hagley Museum and Library is the site of the gunpowder works founded by E. I. du Pont in 1802. The renowned museum collects, preserves, and interprets the unfolding history of American enterprise. To celebrate its 50th Anniversary in 2007, the Museum unveiled a series of improvements to the Visitor Center that dramatically enhance the visitor experience. These include a new handicapped-accessible pedestrian bridge over the millrace that extends onto a new terrace overlooking the Brandywine River. The terrace allows the Museum to host outdoor events. Other enhancements include a new entryway to the Visitor Center as well as improved handicapped parking facilities and visitor access. New signage more clearly orients visitors.