Centuries before the world's oceans became a global trade highway, Chinese seafarers set sail to faraway lands to exchange commodities. Now, Historian Sam Willis retraces the golden era of maritime trade to uncover a legacy that culminated in one of the greatest armadas of all time, and discover parallels between the world then and now.更多《21世纪海上丝路》高清国语版、21世纪海上丝路在线观看完整版、21世纪海上丝路在线观看免费相关欧美综艺资源，请持续关注迪博民药影视!