Viking mythology also called Norse Mythology is a pre-Christian religion belief. Norse mythology has to do with ancient heroes, gods, and the making of Germanic people. Since Norse mythology was made so long ago by Christian historians, the religious beliefs cannot be completely determined. Some characters in Norse mythology were based on real people. The exact definition of a Viking is a member of the Scandinavian warriors who raided large areas of Europe in the 8th century. According to what Norse myths say, life began with fire and ice. The people in the Viking era didn't believe in God, they believed in their own Gods.
Some days of the week took names of Gods such as Tuesday meaning Tisdag which is the God from Tyr, Wednesday meaning Onsdag from Odin, Thursday Torsdag from Thor, and last is Friday meaning Fredag from Frigg. Each God in Norse mythology has their own story to go with them.