How This Ancient ‘Heavenly Book’ Helped Sailors Navigate the Seas in the 15th Century?
Today, we have satellite navigation at sea. But before GPS, how did ancient Chinese fishermen chart their course? Genglubu, an ancient Chinese sailing guide, recorded over 100 South China Sea reefs and more than 200 sea routes, all named in the local dialect of Hainan’s Tanmen fishermen. Passed down through generations and continuously refined, this “secret navigation manual” helped
