It’s unclear who Biatec was. The name appears on the coins that circulated among the Celtic tribe of the Boii, minted in what is present-day Bratislava around 60-40 B.C. These rare ancient coins are also referred to as Biatec (or Biatex) by modern scholars. Although this has not been confirmed, it was likely the name of the leader of the tribe. Generally sizing 25 millimeters (just under an inch) in diameter and weighing about 17 grams, the silver coins were equivalent of Hellenistic hexadrachms or tetradrachms, which they are believed to…