The eye in a triangle that appears on the reverse of the Great Seal of the United States was called the Eye of Providence by the designers of the seal. The origins of this symbol which appeared in the last half of the seventeenth century are documented nowhere. However, consideration of analogous symbols and seventeenth century writers makes it clear that the origins of the Eye of Providence lie in the Greek classics. The subsequent paths are via alchemy, astrology, kabala, Rosicrucianism, and Freemasonry. This symbol which suggests the protective observation of a benevolent diety has been with us for three centuries now and may be consulted at any time on the back of the United States one dollar bill.