L’astronomie nautique le long de la route maritime de la soie
Persian and Arab sailors were the first to venture into the open sea outside the view of the coast. As a result, they had to elaborate universal systems of navigation based on the positions of the stars. According to literary sources, Chinese pilots had sailed into the open sea on their way to the Malay Peninsula by the 7th century. By the 15th century, they used similar navigation systems to their Persian and Arab predecessors.