According to my Jewish Study Bible, Daniel was "probably written in its final version in 164 BCE,; Chs. 7-12 are most likely written compositions, datable to the last year of the Maccabean revolt (164 BCE)."- Lawrence M. Wills. The Jewish Publication Society. Page 1635. Thanks Dr.Josh and Megan for trying to educate us layman Ancient Near Eastern geeks. đ