Tthe earliest The description of the Ouroboros, a circle that eats its tail, was found in the grave of Tutankhamun, who eats his tail, Pharaoh, which manages Egypt around 1320Bc. Used in funeral texts to describe the infinite essence and then stacked all over the place. Expressed the seasonal period of the calendar year in ancient Rome; The snake was great enough to cover the world in Norway mythology. The idea is also a fabrication for the modern financial system. The credit risk is described how the banks are built from the banks, only once again to embrace them again.