This 1940 time capsule came with its own windmill

Thornwell Jacobs, the president of Oglethorpe University in Georgia, worked out that 6,177 years had passed since the start of the Egyptian calendar, and decided to aim the same distance forward. In 1940 he welded shut a converted swimming pool packed with 1930s objects, with instructions not to open it until noon on May 28, 8113.

The chamber is 20 feet long and 10 feet high, sits on bedrock under a stone roof 7 feet thick, and had its oxygen pumped out and replaced with nitrogen. It holds seed samples, dental floss, a woman's purse with typical contents, an electric toaster, a pacifier, a manual typewriter, Lincoln Logs, a plastic Donald Duck, a bottle of Budweiser, Artie Shaw records, and microfilm of more than 800 books running over 600,000 pages. There are voice recordings of Hitler, Stalin, Roosevelt, and Mussolini, plus Popeye the Sailor Man and a professional pig caller.

Jacobs assumed electricity might not be in general use in the 82nd century. So the archivist, Thomas K. Peters, installed a windmill inside the vault to run the microfilm readers and projectors, a magnifier in case that failed, and a hand-cranked machine he called a Language Integrator, built to teach English to whoever opens the door.

Previously:
• There's a room-sized time capsule in Georgia that will be opened 6,098 years from now
• How to find the Westinghouse Time Capsule after 5000 years