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Norse mythology is quite complicated, but the main enemies of the Norse gods were the Frost Giants. There is also one Norse god named Loki who was working against the interests of the other gods; probably he was the single greatest threat.
The Norse gods, or Aesir, live in the realm of Asgarth (also spelled Asgard). It's one of the nine worlds of pre-Christian Germanic cosmology.
odin, the chief god of all the Norse gods. the one who risked his life and sacrificed one of his eyes to gain eternal knowledge
The vikings didn't believe in just one God, they believed in many, which is called polytheism. They believed in the Norse gods such as Odin, Thor, Loki, Frey, etc.
The Almighty One in "Ah! My Goddess!" is generally just referred to as Kami-sama. It has not yet been revealed which of the Norse Gods he corresponds to, but it is likely that it is Odin, Chief of the Norse gods.
No it's one of 9 worlds in the Norse religion, capital city of the Gods.
There are many Greek Gods that have been described in history. One can find a few name in this post and the others can be obtain through the History Channel pages. Among these Greek Gods are Demeter, Poseidon,Gaia, Zeus, the Fates, Hera,Dionysus, Athena, Aphrodite, Aries and Hades. One or two might have been excluded from the list.
No one created Thor. He was the son of Odin (chief of the Norse gods) and Fjorgyn (personificaiton of the Earth).
There were two races of gods in Norse mythology: Aesir and Vanir. They went to war at one point: the Aesir won and most of the Vanir were killed, although a few "switched sides" and joined the Aesir pantheon, such as Freyr and Freya.
In Norse mythology, Asgard is one of the Nine Realms and is typically depicted as the home of the Aesir gods and goddesses. It is not a physical location in any specific country on Earth, but rather a mythical realm.
Wikipedia has a very long list of theological demon names. The website also has a page dedicated to a general list of demon names. Another website one can find demon names is Gods and Monsters.
There have been way too many gods and goddesses to list every single one with their role in a short answer like this!You'll have to find a textbook to study for this answer.