Today is Tirsdag, the first of 4 consecutive days of the week that are named for Norwegian gods. Tuesday is named for Tyr, the god of war. He is considered the son of Odin, and is depicted with only one hand because his other hand was bitten off by a giant wolf named Fenrir.
On the day of Ragnorak -- the end of the world -- Tyr is destined to kill Garm, the dog which guards the entrance to Hell. Unfortunately, Tyr will be killed in the battle, but seeing how it's the end of the cosmos and everything, there really isn't much to live for anyway. In truth, the world is reborn after Ragnorak as an idyllic world where gods and men will live happily together and there will be no more wickedness.