The city of Liège in Belgium attempted to train 37 cats to deliver mail in the 1870s. The cats were trained to carry mail in small sacks attached to their collars, and the experiment was ultimately unsuccessful.
The city of Liège, Belgium attempted to employ 37 cats as mail carriers in the 1870s, according to a BBC article. Messages were tucked in waterproof bags that the cats would carry around their necks.This looks laughable but it did happen.
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