WASHINGTON--(BUSINESS WIRE)--America250, the national, nonpartisan organization charged by Congress with leading the celebration of the 250th anniversary of the signing of the Declaration of Independence, today announced that “America’s Time Capsule” has been officially sealed and revealed the full collection of items that will be preserved inside the capsule for the next 250 years. Established in America250’s founding public law, the Time Capsule reflects a national responsibility to preserve