The view of Professor Robert Schoch Schoch is a renowned figure, indeed notorious, for the case he's made, based on strict geological evidence, that … - Graham Hancock

The fullest account we have of Oannes is found in surviving fragments of the works of a Babylonian priest called Berossos who wrote in the third century BC. [...] Oannes did not do his work alone but was supposedly the leader of a group of beings known as the Seven Apkallu — the "Seven Sages" — who were said to have lived "before the flood" (a cataclysmic global deluge features prominently in many Mesopotamian traditions, including those of Sumer, Akkad, Assyria and Babylon). Alongside Oannes, these sages are portrayed as bringers of civilization who, in the most ancient past, gave humanity a moral code, arts, crafts and agriculture and taught them architectural, building and engineering skills.

Around this date, too, Homo sapiens neanderthalensis first appears, a quite distinct subspecies which most of us know as 'Neanderthal Man'. Tall, heavily muscled, with prominent brow ridges and a protruding face, Neanderthal Man had a bigger average brain size than modern humans (1400cc as against our 1360cc).7 The possession of such a big brain was no doubt an asset to these 'intelligent, spiritually sensitive, resourceful creatures'8 and the fossil record suggests that they were the dominant species on the planet from about 100,000 years ago until 40,000 years ago.

Indian thought has traditionally regarded history and prehistory in cyclical rather than linear terms. In the West time is an arrow — we are born, we live, we die. But in India we die only to be reborn. Indeed, it is a deeply rooted idea in Indian spiritual traditions that the earth itself and all living creatures upon it are locked into an immense cosmic cycle of birth, growth, fruition, death, rebirth and renewal. Even temples are reborn after they grow too old to be used safely — through the simple expedient of reconstruction on the same site.
Within this pattern of spiralling cycles, where everything that goes around comes around, India conceives of four great epochs of 'world ages' of varying but enormous lengths: the Krita Yuga, the Treta Yuga, the Davapara Yuga and the Kali Yuga. At the end of each yuga a cataclysm, known as pralaya, engulfs the globe in fire or flood. Then from the ruins of the former age, like the Phoenix emerging from the ashes, the new age begins.