Answer:
East Asia - in the Western World, Ramen is a food that is commonly associated wth Japan. However, the Ramen is originally from China, and through cultural diffusion, it spread to Japan.
South Asia - When the British conquered South Asia, they centralized political administration, spread the use of English in formal contexts, and built a system of rail networks.
Southeast Asia - Buddhism is a religion that emerged in India, and spread throughout Southeast Asia thanks to cultural diffusion. To this day, some of the most buddhist countries in the world are in Southeast Asia, for example, Myanmar.
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