During the period of 600-1600, Maritime trading became an important way of exchanging goods and information. This type of trade increased the speed of transportation and the amount of goods people could carry. Trade between China and Japan not only spread goods, but it spread culture and ideas. Due to earlier conflicts between these countries, the Ming Dynasty decided that China and Japan relations could only occur on the ports of Ningbo, Hangzhou, and some others in Korea.
As a result of Maritime trade growth, the amount of piracy increased. Japanese pirates from 1200-1600 raided Chinese and Korean ships during trade, which angered them. These Japanese pirates were made up of outcast groups of their society, and costed Japan economically with reparations. Mongol invasions also occurred. Japan's distance and weather over water prevented mongol invaders from making it to Japanese main land but China was hurt by these invasions.
As a result of Maritime trade growth, the amount of piracy increased. Japanese pirates from 1200-1600 raided Chinese and Korean ships during trade, which angered them. These Japanese pirates were made up of outcast groups of their society, and costed Japan economically with reparations. Mongol invasions also occurred. Japan's distance and weather over water prevented mongol invaders from making it to Japanese main land but China was hurt by these invasions.