 Settlements grew slightly, primarily located on the flood plains and coastal lagoons, with cultivation of sweet potatoes and further development of iron working.In the early 14th century, a Gujarat ship wrecked off the Anosy coast; it has been theorized that the stranded Gujarati went north to found the Zarabehava dynasty of Antesaka, though some scholars disagree.In the 16th century, the Zafiraminia (descendants of the Muslim Ramini) arrived in present-day Anosy and moved into the Efaho valley after being defeated by the Antambahoaka people to the north.