In Norse mythology, Thor was the God of Thunder and the God of War and he carried a brief managed hammer or Mjolnir, crafted by Dwarves, which he used to smash the heads of his enemies, particularly Giants. The hammer has been so heavy that in order to wield it, he had to wear a special belt, Meginjord, to boost his strength and iron gloves to enable him to lift it. When thrown, the hammer returned to whoever threw it. Mjolnir literally interpreted means crusher and in some literature is referred to as a club or ax. 

Thor went in a chariot pulled by goats, which he'd eat when hungry then return to life along with his hammer, very convenient! The most notable story in Norse Mythology relating to Thor is when the King Of The Giants steals his hammer and won't return it until the Goddess Freyja agrees to marry him. (Something she does not want to do!) . Thor is persuaded to disguise himself as Freyja in a bridal gown and veil and attend the wedding feast. The King Of The Giants becomes somewhat suspicious when he notices how blessed his bride to be's desire is. 

But he is reassured it's simply bridal nerves which have stopped her eating for 2 days! He also notices that she's red, fiery eyes, but again this is excused too little sleep because of enthusiasm. Thor gets his chance and slays the Giant King and his followers when the King demands that Thor's Hammer is attracted to his bride to bless her. In the Viking age, the emblem of Thor's Hammer has been popular as an amulet and employed for protection and luck. The Vikings were especially affected by Thor's reputation as ferocious in battle and his hammer symbolized this warlike quality. They have been found in graves and have been used as a symbol of defiance against the recently emerging conversion to Christianity in many areas of Norway, Denmark, and Sweden. It's still worn today as a Germanic Neo-Pagan symbol and to a lesser extent by hefty rock fanatics, goths, bikers, and Pagans.check over here