Prussian mythology ("krivė krivaitis") and female "waidelinns" (similar to Roman vestales). Various later authors simply copied information from Grunau and the "Sudovian Book" adding no or very little new information. The 1249 Treaty of Christburg mentioned Curche, an idol worshiped during harvest festivals. Scholars were unable to positively determine its gender, function, or etymology. Various suggested functions include god of food (Simon Grunau), smithing god (similar to Slavic Svarog and Greek Hephaestus), god creator (derived from related Lithuanian word "kurti" – to create), god of harvest and grain, evil spirit, god of fire. Some even doubted whether it was a god at
Hephaestus assist him in moving around. Hephaestus’s ugly appearance and lameness is taken by some to represent peripheral neuropathy and skin cancer resulting from arsenicosis caused by arsenic exposure from metalworking. Bronze age smiths added arsenic to copper to produce harder arsenical bronze, especially during periods of tin scarcity. Many Bronze Age smiths would have suffered from chronic arsenic poisoning as a result of their livelihood. Consequently, the mythic image of the lame smith is widespread. As Hephaestus was an iron-age smith, not a bronze-age smith, the connection is one from ancient folk memory. Parallels in other mythological systems for Hephaestus's