Legio X "Equestris" (Latin: Tenth mounted legion), a Roman legion, was levied by Julius Caesar in 61 BC when he was the Governor of Hispania Ulterior, after its soldiers were discharged,its remnants were reconstituted, fought for Mark Antony, Marcus Antonius, was a Roman politician and general who played a critical role in the transformation of the Roman Republic, from an oligarchy which autocratic time period?