A Talmud was compiled in each of these regional centres. The earlier of the two compilations took place in Galilee, either in the late fourth or early fifth century, and it came to be known as the Jerusalem Talmud (or Talmud Yerushalmi). Later on, and likely some time in the sixth century, the Babylonian Talmud was compiled (Talmud Bavli). More @Wikipedia
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