 Athens issued the Megarian decree, which banned Megarian merchants from territory controlled by Athens; its aim was to constrict the Megarian economy.The Athenians claimed that they were responding to the Megarians' desecration of the "Hiera Orgas", a sacred precinct in the border region between the two states.Arguably the most famous citizen of Megara in antiquity was Byzas, the legendary founder of Byzantium in the 7th century BC.