"When the great time will come, in which mankind will face its last, hard trial, it will be foreshadowed by striking changes in nature. The alteration between cold and heat will become more intensive, storms will have more catastrophic effects, earthquakes will destroy great regions, and the seas will overflow many lowlands. Not all of it will be the result of natural causes, but mankind will penetrate into the bowels of the earth and will reach into the clouds, gambling with its own existence..." - prophecy of Johannes Friede (1204-1257)