Wikipedia
In Greek mythology, the Titanomachy ( Titanomakhia) was a ten-year series of battles fought in Thessaly, consisting of most of the Titans (an older generation of gods, based on Mount Othrys) fighting against the Olympians (the younger generations, who would come to reign on Mount Olympus) and their allies. This event is also known as the War of the Titans, Battle of the Titans, Battle of the Gods, or just the Titan War. The war was fought to decide which generation of gods would have domain over the Universe; it ended in victory for the Olympians.
Greeks of the Classical Age knew of several poems about the war between the gods and many of the Titans. The dominant one, and the only one that has survived, is the Theogony attributed to Hesiod. A lost epic, Titanomachia, attributed to the blind Thracian bard Thamyris, himself a legendary figure, was mentioned in passing in an essay On Music that was once attributed to Plutarch. The Titans also played a prominent role in the poems attributed to Orpheus. Although only scraps of the Orphic narratives survive, they show interesting differences from the Hesiodic tradition.
The Titanomachy ( Greek: Τιτανομαχία) is a lost epic poem, which is a part of Greek mythology. It deals with the struggle that Zeus and his siblings, the Olympian Gods, had in overthrowing their father Cronus and his divine generation, the Titans.
The poem was traditionally ascribed to Eumelus of Corinth, a semi-legendary bard of the Bacchiad ruling family in archaic Corinth, who was treasured as the traditional composer of the Prosodion, the processional anthem of Messenian independence that was performed on Delos.
Even in Antiquity many authors cited Titanomachia without an author's name. M. L. West in analyzing the evidence concludes that the name of Eumelos was attached to the poem as the only name available. From the very patchy evidence, it seems that "Eumelos"' account of the Titanomachy differed from the surviving account of Hesiod's Theogony at salient points. The 8th century BC date for the poem is not possible; West ascribes a late seventh-century date as the earliest.
The Titanomachy was divided into at least two books. The battle of Olympians and Titans was preceded by some sort of theogony, or genealogy of the primal gods, in which, the Byzantine writer Lydus remarked, the author of Titanomachy placed the birth of Zeus, not in Crete, but in Lydia, which should signify on Mount Sipylus.