The main tribes of Norse gods are the Aesir and the Vanir. The Aesir includes Odin and Thor, while the Vanir includes Njord and Freyja.

Odin is known as the Allfather, the god of wisdom, war, and death. He is famous for his relentless pursuit of knowledge, sacrificing greatly for it.

Ragnarok is the foretold end of the world in Norse mythology, characterized by a great battle leading to the death of many gods and the rebirth of the world.

Central figures in the Aesir gods include Odin, Thor, and Frigg. They play significant roles in many of the myths and maintain order in the universe.

Freyja is the goddess of love, beauty, and fertility in Norse mythology. She is also a warrior and is associated with the Valkyries who decide the fate of warriors in battle.