Polytheistic reconstructionism (Reconstructionism) is an approach to Neopaganism first emerging in the late 1960s to early 1970s, and gathering momentum in the 1990s to 2000s. Reconstructionism attempts to re-establish historical polytheistic religions in the modern world, in contrast with syncretic movements like Wicca, and "channeled" movements like Germanic mysticism or Theosophy.
Read more about Polytheistic Reconstructionism: History, Reconstructionism and Neopaganism, Varieties