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17 июл 1275 г. - Ramon Llull, Spanish theologian invents the Ars Magna, a tool for combining concepts mechanically, based on an Arabic astrological tool, the Zairja. The method would be developed further by Gottfried Leibniz in the 17th century.

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17 июл 1275 г.
Сейчас
~ 750 г назад