We also know that Sparta had a fleet but that Spartiates had virtually no opportunity to gain the extremely complex knowledge necessary to build and sail ancient vessels. We know that Spartiates were prohibited from pursuing any profession other than that of arms and civic service, yet Lacedaemon had extensive international trade. We know further that Lacedaemon produced and exported timber, pottery, and bronze works. It had mines and quarries, and, of course, every kind of craft necessary to daily life in the ancient world from carpentry and metal working to tanning and basket-weaving. Who provided the manpower and the know-how for all these various industries, if the Spartiates were prohibited and the helots were working the land?
Perioikoi play an important role in both A Peerless Peer and A Heroic King: