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17 lugl 1275 anni - 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.

Aggiunto al nastro di tempo:

Data:

17 lugl 1275 anni
Adesso
~ 750 years ago