"It unlocks several new buildings, units and improvements. It also allows fishing, which means that more food is available. The previous Epoch is the Prehistoric Age. Next epoch is Copper Age ."@en . . "It unlocks several new buildings, units and improvements. It also allows fishing, which means that more food is available. The previous Epoch is the Prehistoric Age. Next epoch is Copper Age ."@en . . . . "Empire Earth/Stone Age"@en .