What do southeast Asia and east Asia have in common?

Answer:
Many East Asian and Southeast Asian countries were once Buddhist empires. What is now China, Mongolia all the way south into Myanmar, Thailand and Indonesia were once Buddhist and Hindu empires. Chinese and Indian influence has dominated much of Southeast Asia. Although Indian influence is more of the southwest section of Southeast Asia, particularly in western Indonesia and Myanmar. Chinese influence has dominated much of the entire eastern part of Southeast Asia and East Asia.
First answer by FilipinoMan. Last edit by FilipinoMan. Contributor trust: 4 [recommend contributor recommended]. Question popularity: 2 [recommend question].