sentences:  Long distance caravan trade, a long-time practice in the Horn of Africa, continued unchanged in Ajuran times.Today, numerous ruined and abandoned towns throughout the interior of Somalia and the Horn of Africa are evidence of a once-booming inland trade network dating from the medieval period.With the centralized supervision of the Ajuran, farms in Afgooye, Kismayo and other areas in the Jubba and Shabelle valleys increased their productivity.