Old Norse religion

Old Norse Religion, also known as Norse Paganism, is the most common name for a branch of Germanic religion which developed during the Proto-Norse period, when the North Germanic peoples separated into a distinct branch of the Germanic peoples. It was replaced by Christianity and forgotten during the Christianization of Scandinavia. Scholars reconstruct aspects of North Germanic Religion by historical linguistics, archaeology, toponymy, and records left by North Germanic peoples, such as runic inscriptions in the Younger Futhark, a distinctly North Germanic extension of the runic alphabet. Numerous Old Norse works dated to the 13th century record Norse mythology, a component of North Germanic religion.

Mjölnir pendants was the Old Norse Religions equivelant to the Christian cross during the later Viking Age.
Three figures on the 12th-century Skog tapestry; they have been interpreted as the Norse gods Odin (one eye), Thor (hammer in hand) and Freyr.

Old Norse religion was polytheistic, entailing a belief in various gods and goddesses. These deities in Norse mythology were divided into two groups, the Æsir and the Vanir, who in some sources were said to have engaged in an ancient war until realizing that they were equally powerful. Among the most widespread deities were the gods Odin and Thor. This world was inhabited also by various other mythological races, including giants, dwarfs, elves, and land-spirits. Norse cosmology revolved around a world tree known as Yggdrasil, with various realms existing alongside that of humans, named Midgard. These include multiple afterlife realms, several of which are controlled by a particular deity.

Transmitted through oral culture rather than through codified texts, Old Norse religion focused heavily on ritual practice, with kings and chiefs playing a central role in carrying out public acts of sacrifice. Various cultic spaces were used; initially, outdoor spaces such as groves and lakes were typically selected, but after the third century CE cult houses seem to also have been purposely built for ritual activity, although they were never widespread. Norse society also contained practitioners of Seiðr, a form of sorcery which some scholars describe as shamanistic. Various forms of burial were conducted, including both inhumation and cremation, typically accompanied by a variety of grave goods.

Throughout its history, varying levels of trans-cultural diffusion occurred among neighbouring peoples, such as the Sami and Finns. By the twelfth century Old Norse religion had succumbed to Christianity, with elements continuing into Scandinavian folklore. A revival of interest in Old Norse religion occurred amid the romanticist movement of the nineteenth century, during which it inspired a range of artworks. It also attracted the interest of political figures, and was used by a range of right-wing and nationalist groups. Academic research into the subject began in the early nineteenth century, initially influenced by the pervasive romanticist sentiment.