Yggdrasil & tree& (In Norse mythology, Yggdrasil (/ˈɪɡdrəsɪl/; from Old Norse Yggdrasill, pronounced [ˈyɡːˌdrasilː]) is an immense tree that is central in Norse cosmology, in connection to which the nine worlds exist.
Ragnar Lodbrok from the Viking TV Show with a raven on his shoulder. According to Viking mythology, Odin would often appear as a raven. Ragnar Lodbrok claimed to be descended from Odin and many Vikings believed this.
The great sea expeditions of the Viking Age - The basis of the great sea expeditions undertaken by the Vikings was ship technology. The Viking ship was a piece of high technology based upon hundreds of years of development and experience.