A 900-pound time capsule marking the 250th anniversary of American independence has been sealed shut and shipped to Philadelphia, where it will be buried next month.

To mark America's 250th, a time capsule will be buried in Philadelphia on July 4, not to be opened until America's quincentennial. What objects made the cut to be preserved for…

A 900-pound time capsule marking the 250th anniversary of American independence has been sealed shut and shipped to Philadelphia, where it will be buried next month.