Permitted to reform after 146 bce, at first on a local basis only, the confederacy survived until at least the mid-3rd cent. ce, chiefly as a vehicle (from c.ce 50) for a federal *ruler-cult based at Corinth. For some of the 1st cent. ce, in temporary union with other regional confederacies (Boeotian, Euboean, etc. ), it formed early-imperial *Achaia's nearest equivalent to a provincial *concilium.