The only Europeans that were allowed to trade with the Japanese following the expulsion of all christians were the Dutch.
During the Sakoku, the isolationist foreign policy of the Tokugawa shogunate, the only contact with european influence allowed was with the Dutch who had a factory at Dejima in Nagasaki, and through the Dutch East India Company who was allowed to operate in Nagasaki.
The Maritime Silk Road was the name given by a Japanese scholar in 1967 to distinguish it from the traditional Silk Road. This route surrounded many oceans and seas including; South China Sea, Strait of Malacca, Indian Ocean, Gulf of Bengal, Arabian Sea, Persian Gulf and the Red Sea.
Answer:
because God wanted it and that's why
The Mongols' reign over China was called the Yuan Dynasty.