Time Capsules 101: What are they and when to open them
This article helps define what a time capsule is, some of the history
behind it, and how to choose an opening date for your time capsule. It also talks about the Book of Record made by the first time capsule ever - the Westinghouse Time Capsule of Cupaloy at the 1939 World's Fair. And it discusses how others have determined the opening year for their time capsule and the thinking behind them.