The Antikythera calculating mechanism (2nd c. B.C.)

550,00 €

It is the first calculating machine in history. It was used to determine and forecast important astronomical and calendar events.


The Greek Abacus (5th c. B.C.)

20,00 €

Abacus was a wooden tablet with small pebbles used to calculate complex mathematical operations. Such an abacus, based on the acrophonic (Herodian) numeral system (e.g.