Lehigh Valley Passport to History at the 1803 House...July 22nd from 1-am to 4pm and 23rd from noon to 4pm: The Lehigh Valley Passport to History is a celebration of local history, stories, and the community that brings Lehigh Valley history to life. The event gives an opportunity for visitors, to explore local history through a variety of museum tours, interactive exhibits, children’s activities, and more. Go to Summer Events.