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 another 250 years?

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.