 Complete the following phrase:  Gotō was settled in ancient times, and was a port of call on the trade route between Japan and Tang-dynasty China in the Nara period. Buddhist prelate Kūkai stopped at Gotō in 806. The islands came under the control of the Gotō clan, a local warlord clan specializing in trade and piracy, during the Muromachi period. The area was the center of intense European missionary activity in the late 16th century, which converted most of the population to the Kirishitan Christian faith. Gotō Harumasa 15481612 served Toyotomi Hideyoshi and participated in the 