How did Buddhism initially spread to parts india

From Central Asia, they spread into China in the 2nd century CE. These forms of Hinayana were later combined with Mahayana aspects that came through this same route from India, with the Mahayana eventually becoming the dominant form of Buddhism in China and most of Central Asia. The Chinese form of Mahayana later spread to Korea, Japan and Vietnam. Buddhism became prominent in merchant communities and then spread throughout the Mauryan empire through commercial connections and along trade routes. In this way, Buddhism also spread through the silk route into central Asia. Aśoka and the Mauryan Empire Further information: Ashoka the Great and Mauryan empire.

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c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3

answer: are there any

explanation: