A look at what's inside the America 250th time capsule buried in Philadelphia

Something big went down 250 years ago at Independence Hall in Philadelphia. The Founders finalized the Declaration of Independence there. But something big also went down at Independence Hall just a few days ago — literally. As in the ground. Congress adopted a resolution mandating burial of a time capsule just a few feet away from Independence Hall to commemorate the nation’s 250th anniversary . And the instructions are clear — do not open until the year 2276, 250 years from now. FLASHBACK: AS