The Eye of Providence (or the all-seeing eye of God) is a symbol showing an eye often surrounded by rays of light or a glory and usually enclosed by a triangle. It represents the eye of God watching over mankind (or divine providence). In the modern era, a notable depiction of the eye is the reverse of the Great Seal of the United States, which appears on the United States one-dollar bill.
The association of an eye with the concept of Divine Providence did not emerge until well into the Christian Era, in Renaissance European iconography, where it was an explicit image of the Christian Trinity. Seventeenth-century depictions of the Eye of Providence sometimes show it surrounded by clouds or sunbursts.
In 1782, the Eye of Providence was adopted as part of the symbolism on the reverse side of the Great Seal of the United States. It was first suggested as an element of the Great Seal by the first of three design committees in 1776 and is thought to be the suggestion of the artistic consultant, Pierre Eugene du Simitiere.
In his original proposal to the committee, Du Simitiere placed the Eye over shields symbolizing each of the original thirteen states of the Union. On the version of the seal that was eventually approved, the Eye is positioned above an unfinished pyramid of thirteen steps (again symbolizing the original States, but incorporating the nation's potential for future growth). The symbolism is explained by the motto that appears above the Eye: Annuit Cœptis, meaning "[Providence] approves (or has approved) [our] undertakings".