Well, first of all, all the documents that mention Moses and the Dead Sea (actually the Old Testament in ancient Hebrew, and the Old Testament is a Jewish classic) are valued by Christianity, but Christianity only appeared around 1 century.

Buddhism, on the other hand, was born out of ancient Hinduism (although it is not accurate, it is easy to understand, while ancient Hinduism appeared in 1600 BC, Judaism in 2000 BC, while Christianity was only earlier than Islam, and Islam was born around the 7th century).

As for the ancient Hinduism or Judaism, who was earlier, this is left to archaeologists.

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If Confucianism is counted as religion, the population base of China will play a great role. By the way, speaking of religious population, most parts of China belong to Buddhism. This is mainly related to the separation of the three religions in China.