Pagan religions (also Paganism) refers to a group of historical polytheistic religious traditions—primarily those of cultures known to the classical world. In a wider sense, it has also been understood to include any non-Abrahamic, folk, or ethnic religion.
The term pagan was historically used as one of several pejorative Christian counterparts to "gentile" (גוי / נכרי) as used in the Hebrew Bible—comparable to "infidel" or "heretic". Modern ethnologists often avoid this broad usage in favour of more specific and less potentially offensive terms such as polytheism, shamanism, pantheism, or animism when referring to traditional or historical faiths.
Since the 20th century, "Paganism" (or "Neopaganism") has become the identifier for a collection of new religious movements attempting to continue, revive, or reconstruct historical pre-Abrahamic religion. There are roughly 300 million pagans worldwide.