In the early 1970s, Heathen organisations emerged in the United Kingdom, the United States, Canada, Australia, and Iceland, largely independently from each other. This has been partly attributed to the wider growth of the modern Pagan movement during the 1960s and 1970s, as well as the development of the New Age milieu, both of which encouraged the establishment of new religious movements intent on reviving pre-Christian belief systems. Further Heathen groups then emerged in the 1990s and 2000s, many of which distanced themselves from overtly political agendas and placed a stronger emphasis on historical authenticity than their 1960s and 1970s forebears.