The state with which the Slavs were actively trading?

The Slavs actively traded with Byzantium. In the early Middle Ages, it was a rich and developed state, it surpassed any other European kingdom. Its main trade center was Constantinople, as it had an advantageous geographical position.

In Byzantium at that time it was possible to buy almost anything, both imported goods, for example, from Arab countries, and local handicrafts. The Slavs more often traded in raw materials: furs, honey, wax, flax.

In addition, the Slavs trade with the Scandinavians, the Volga Bulgaria, the empire of Charlemagne.