Song-style sea-going ship

Timeline

1. c. 960–1080Southeast coast of China · Southeast coastAfter the founding of the Northern Song, shipbuilding on the southeast coast developed on a Tang base into watertight bulkheads, multi-mast batten sails and large keel structures; sea ships expanded from coastal fishing transport to near-ocean trade with Goryeo, Japan, Champa and others, laying the hull form and craft foundation for later ocean voyages.
2. 1130–1170Quanzhou–Southeast Asia–Indian Ocean route · Indian OceanThe Southern Song maritime trade office system matured, and Song-style large sea ships became the mainstay of official dispatch vessels and merchant guilds' ocean voyages. Between 1151 and 1160 such ships sailed from Quanzhou and Guangzhou, carrying porcelain, silk, spices and other goods between Champa, Srivijaya and more distant ports, serving as the core vessels of the Song maritime trade peak.
3. c. 1279–1400Chinese coast and Southeast Asian ports · South China coastThe Yuan inherited Song shipbuilding techniques, and Song-style sea ship technology continued to spread through maritime trade and foreign merchant networks; by the early Ming, hull forms further developed in tonnage, sail plan and navigational experience into the larger Fuchuan system. Song-style sea ship as a distinct hull-type label gradually gave way to later general terms, but its bulkheads and ocean-going experience deeply influenced East Asian shipbuilding traditions.