The method responsible for the development and the spread of religion between China and Japan in 500 B.C.E. was trade.
International trade in the earlier century is important as it helps in the development of the country commercially. The development of the Silk route by China mediates the development of the international trade between China with the western world.
The trade development also mediates the transfer of religious practices between China and Japan. Thus, the spread of religion is found with the increase in trade.
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