Omen

"...When the divine portion began to fade away
And became diluted too often and too much with the mortal admixture
And the human nature got the upper hand
They then, being unable to bear their fortune, behaved unseemly...

And in a single day and night of misfortune
All your warlike men in a body sank into the earth
And the island of Atlantis in like manner
Disappeared into the depths of the sea..."

[Plato 427-347 v.u.Z.]