Archive of patents and inventions of 14-15 centuries
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How do we know little about the 14-15 centuries. In our view, these are dark times. The library of the Association "Protohistory" got a unique archive of manuscripts from this period with inventions that put a dead end ... More than 100 works of 14-15 centuries were collected in the first known patent and in 1618 entered into the Bavarian library. There are guns, limb prostheses, wings, and even a tractor. Dozens of strange inventions that we have never heard of. But this amazing collection allows you to open another unknown page of ancient history.