Freyr, the god of fertility/plenty and sun/rain, was sitting atop Odin's seat when he saw Gerd, a giantess from the underworld. He decided he had to have her, so he sent Skirnir to win her over and in return gave him a magic horse and his sword. When Skinir got to Gerd she refused Freyr, so Skinir offered golden apples, but she still refused. Getting frustrated, Skinir threatened her with the sword and said if she didn't come that the gods would unleash their wrath on her. So she went.
The Dark Angels are considered amongst the most powerful and secretive of the Loyalist Space Marine Chapters. They were the I Legion of the original 20 Space Marine Legions to be created during the First Founding of the 30th Millennium