The Silk Road is the world’s oldest trade route. It brought silk, spices and porcelain, but also ideas and religions, from Asia to Europe. The rise of sea travel saw the decline of the land links, but now China is planning a new Silk Road.
"Designating the sea routes as "silk road" is original research - the term silk road denotes only the land routes and only those roads between the Med and China running in west-east direction, not those going from the west and east of India northwards." This information provided by the author of the derivative work. Red is land and blue is sea route.