Date: | 1912 |
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Description: | Wilbur Wright, in profile, with a Wright Flyer. The original photographic postcard from which this image was copied was presented by Wright to pioneer avia... |
Date: | 02 03 1964 |
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Description: | Wisconsin high school student Jeffrey Mattox is shown playing a game of tic-tac-toe against the machine he constructed. A screen shows the squares, and a m... |
Date: | |
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Description: | Stone marker at Walnut Grove. The inscription reads: "Cycrus H. McCormick — Inventor of the reaper. Was born on this farm, Feb. 15, 1809. Here he completed... |
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