Revealed! Piscataway’s exceptional “back story” via a museum tour Discover! why and how America’s tradition of celebrating JULY 4th began in Piscataway in 1778! View! the impressive map exhibit -- a fascinating display of the museum’s theme, From Indian Trail to Interstate -- journey through time (with or without an app!). Tours are approximately 1 our long and the gift shop is open during the tour time Group tours by appointment only!