In Finnish mythology, the Sampo or Sammas was a magical artifact of indeterminate type constructed by Ilmarinen that brought riches and good fortune to its holder. When the Sampo was stolen, it is said that Ilmarinen's homeland fell upon hard times and he sent an expedition to retrieve it, but in the ensuing battle it was smashed and lost at sea.
The Sampo is a pivotal element of the plot of the Finnish epic poem Kalevala, compiled in 1835 by Elias Lönnrot based on earlier Finnish oral tradition. In the expanded second version of the poem, the Sampo is forged by Ilmarinen, a legendary smith, as a task set by the matron of Pohjola, Louhi, in return for her daughter's hand. Ilmarinen works for several days at a mighty forge until finally the Sampo is created: Later, Louhi steals the Sampo, provoking Ilmarinen and Väinämöinen to enter her stronghold in secret and retrieve it. Louhi, in reply, pursues them and combats Väinämöinen. In the struggle, Louhi is vanquished but the Sampo is destroyed. '', Akseli Gallen-Kallela, 1896
The World Mill is a hypothesized mytheme shared by the mythologies of certain Indo-European-speaking peoples, involving the analogy of the cosmos or the firmament and a rotating millstone. In the Aarne–Thompson classification systems of Folk-Tales, tale type 565 refers to a magic mill that continuously produces food or salt. Examples include Why the Sea is Salt, Sweet porridge, and The Water Mother. Such devices have been included into modern tales such as Strega Nona. Variants on the theme with a cautionary tale and pupil-master relationship include The Master and his Pupil, and Goethe's 1797 poem The Sorcerer's Apprentice. The Cornucopia of Greek mythology also produces endless goods, and some versions of the Grail myth emphasize how the Grail creates food and goods. Japanese folktale Shiofuki usu speaks of a grindstone that could be used to create anything. Like Sampo, it too was lost to the sea, endlessly grinding salt. The Mahabharatha speaks about the Akshaya Patra, a vessel or bowl capable of creating food. It stopped providing at the end of the day when the lady of the house had her last meal. Similarly in Irish myth the Cauldron of the Dagda was a magical vessel that satisfied any number of people.
Influences
The 1959 Soviet-Finnish film Sampo is loosely based on the story.
The Finnish TV series:fi:Rauta-aika|Rauta-aika, based on Kalevala, has an extended sequence where Ilmarinen and his smiths build the Sampo, which is a Byzantine coin die.
In 1933, A. A. Öpik named a genus of fossil brachiopodSampo.