*In the medieval period, most ships plying the [[Inland Sea]] followed the coastline. But in the early modern period, many more ships began to sail through the middle of the sea (沖乗り). This had an impact on which towns became more major ports. - Ryukyu shisetsu no Edo nobori to Mitarai, 3. | *In the medieval period, most ships plying the [[Inland Sea]] followed the coastline. But in the early modern period, many more ships began to sail through the middle of the sea (沖乗り). This had an impact on which towns became more major ports. - Ryukyu shisetsu no Edo nobori to Mitarai, 3. |