Gerasa was inhabited inhabited during the Bronze Age (3200 BC - 1200 BC). However Greeks used to believe that Gerasa was founded by Alexander the Great. Romans annexeted the city and surroundings to the Province Syria.
Gerasa (Jerash) - Greek, Roman and Byzantine city named also Antioch-on-the Chrysorrhoas. http://romeartlover.tripod.com/Jerash01.html
Gerasa (Jerash) was één van de belangrijkste Grieks-Romeinse-Byzantijnse steden in het Midden-Oosten. De stad was één van de Dekapolissteden.