The earliest Nordic myths all appeared in the form of songs. In BC, the legend of the strange spirit in the period of "when chaos first opened, Gan Kun began to drink" has been circulated among Germanic tribes in northern Europe. In the Middle Ages, Icelandic scholars recorded them in words. There are mainly two "Eda" that can be consulted now (the meaning of this word cannot be verified. Some people think it means "poetry"; Some people think that it is the sound change of Audi, the academic center in southern Iceland, which may refer to the "Audi series". First, the former Ada, or Poetic Ada, discovered by Icelandic scholar Bryn Gjorv Swenson in 1643, was written between the 9th century and13rd century, which included One is Post-Eda, or Essay Eda, written by the Icelandic poet Snorri Sturluson (1178 ~1241) at the beginning of13rd century. It is an explanatory work of "Pre-Ada".

Nordic myth is a unique myth system in Scandinavia, and its formation time is later than other major myth systems in the world. The oral spread history of Nordic mythology can be traced back to the 2nd century1-AD, which was first popular in Norway, Denmark and Sweden, and spread to Iceland and other places with a group of immigrants going north around the 7th century. In the Middle Ages, Christianity prevailed throughout Europe. Due to the strong political blow, most of the works recording Nordic myths were regarded as heresies and burned. So far, the Icelandic epic Eda and the Germanic epic Song of Nibelungen have been well preserved.

Greek mythology (Greek: ε λ λ ν κ? 0? 6 μυθολογ? 0? 7α) is all myths about ancient Greek gods, heroes, nature and the history of the universe, whether oral or written. Most of the Greek myths or legends known today come from ancient Greek literature, including Homer's Iliad and Odyssey, and hesiod (η σ? 0? 7οδο? 0? 9) Work and Time and Divine Spectrum, Ovid's Metamorphosis and other classic works, as well as Aeschylus and Sophocles (σ ο ο κ λ? 0? 6? 0? 9) and euripides's plays. Myth is about the origin of the gods and the world, their struggle for the highest position and Zeus' final victory, their love and quarrel, the influence of their adventures and strength on the world, including the relationship with natural phenomena such as storms or seasons, places of worship and ceremonies. The most famous stories in Greek myths and legends are the Trojan War, Odysseus' Travels and Jason (ι? 0? 4σππ) Looking for golden fleece and Hercules (η ρ α κ λ? 0? 6? 0? 9), theseus (θ eta σ ε? 0? 3? 0? 9) Adventure and Oedipus (ο ι δ? 0? 7που? 0? 9) tragedy.