Ancient Greek mythology claimed that Zeus, as he had previously overthrown his father, Cronus, would in turn also be overthrown by a son. This story can be seen as the equivalent to the end of the world, or the end of an age. Prometheus revealed to him that this son would be born from Zeus and Thetis, if they copulated. In order to prevent this from happening, Zeus married Thetis to Peleus, a mortal hero. This union produced Achilles, the protagonist of the Iliad and one of the greatest heroes of Greek myth. SEE Original Source: http://dictionnaire.sensagent.leparisien.fr/END%20TIME/en-en/#Greek_religion
Greek mythology is derived primarily from Greek literature and representations on visual media dating from the Geometric period (c. 900-800 BC) onward.
In Norse mythology, Ragnarök (Old Norse “Final destiny of the gods” – c.f. Ragn-: power, -a-: via, -rök: rest of volition) refers to a series of major events, including a great battle foretold to ultimately result in the death of a number of major figures (including the gods Odin, Thor, Freyr, Heimdall, and the jötunn Loki), the occurrence of various natural disasters, and the subsequent submersion of the world in water. Afterwards, the world resurfaces anew and fertile, the surviving gods meet, and the world is repopulated by two human survivors. Ragnarök is an important event in the Norse canon, and has been the subject of an amount of scholarly discourse and theory.SEE Original Source: http://dictionnaire.sensagent.leparisien.fr/END%20TIME/en-en/#Norse_religion