When a bunch of politicians descended on Durham-Nockamixon Elementary School this month, they delivered an important heads-up to the students: the nation’s 250th birthday is coming in just two years. That would be the semiquincentennial celebration in July 2026. It’s history in the making.

The Friends of Washington Crossing Park has used the proceeds from a $50,000-grant to hire a full-time interpretive programs specialist. Alex Robb will assist in designing and implementing new …