Baltic neopaganism is a category of autochthonous religious movements which have revitalised within the Baltic people (primarily Lithuanians and Latvians). These movements trace their origins back to the 19th century and they were suppressed under the Soviet Union; after its fall they have witnessed a blossoming alongside the national and cultural identity reawakening of the Baltic peoples, both in their homelands and among expatriate Baltic communities, with close ties to conservation movements. One of the first ideologues of the revival was the Prussian Lithuanian poet and philosopher Vydūnas.