The suspicion that European travellers in the Indian Ocean in the sixteenth century may from time to time have stumbled across charts and maps contai… - Graham Hancock

If ever a society could be said to meet all the mythological criteria of the next lost civilization – a society that ticks all the boxes – is it not obvious that it is our own? Our pollution and neglect of the majestic garden of the earth, our rape of its resources, our abuse of the oceans and the rainforests, our fear, hatred and suspicion of one another multiplied by a hundred bitter regional and sectarian conflicts, our consistent track record of standing by and doing nothing while millions suffer, our ignorant, narrow-minded racism, our exclusivist religions, our forgetfulness that we are all brothers and sisters, our bellicose chauvinism, the dreadful cruelties that we indulge in, in the name of nation, or faith, or simple greed, our obsessive, competitive, ego-driven production and consumption of material goods and the growing conviction of many, fuelled by the triumphs of materialist science, that matter is all there is – that there is no such thing as spirit, that we are just accidents of chemistry and biology – all these things, and many more, in mythological terms at least, do not look good for us.

The Younger Dryas impacts, and subsequent sustained cataclysm, changed the face of the earth completely and wrought particularly significant havoc across North America. We have considered the question of huge volumes of meltwater released into the Arctic and Atlantic Oceans from the destabilized ice sheet and looked at the effects on global climate. But keep in mind that those enormous floods also devastated the rich North American mainland to the south, perhaps the best and most bounteous real estate then available anywhere.
This immense and extraordinary deluge, 'possibly the largest flood in the history of the world,' swept away and utterly demolished everything that lay in its path. Jostling with icebergs, choked by whole forests ripped up by their roots, turbulent with mud and boulders swirling in the depths of the current, what the deluge left behind can still be seen in something of its raw form in the Channeled Scablands of the state of Washington today — a devastated blank slate [...] littered with 10,000-ton 'glacial erratics,' immense fossilized waterfalls, and 'current ripples' hundreds of feet long and dozens of feet high.
If there were cities there, before the deluge, they would be gone.
If there was any evidence of anything that we would recognize as technology there, before the deluge, it would be gone.

The Sabians were allowed to build a new Temple of the Moon God, and to continue their religious rites, after the Arab General Ibn Ghanam conquered Harran in the seventh century AD. This in itself is a sign of most unusual favor, since Islamic armies normally offered "pagans" the choice of either conversion or death. Even more interesting, however, is the Sabians' encounter with the Abbasid Caliph Abu Jafar Abdullah al-Ma'mun, who passed through their city in AD 830 and reportedly quizzed them intensively on their religion.
Remembering the Sabian pilgrimages to Giza, it is reasonable to wonder whether there is any connection with the fact that in AD 820, a decade before he visited Harran, it was Ma'mun who tunnelled into the Great Pyramid and opened its previously hidden passageways and chambers. Indeed, it is through "Ma'mun's Hole" that visitors still enter the monument today. Described by Gibbon as "a prince of rare learning," it seems Ma'mun's investigation was prompted by information he'd received about the Great Pyramid, specifically that it contained: 'a secret chamber with maps and tables of the celestial and terrestrial spheres. Although they were said to have been made in the remote past, they were suppposed to be of great accuracy.