Why is there a cuneiform keystone on the Washington monument?

The cuneiform keystone on the Washington Monument symbolizes the connection between ancient civilizations and the ideals of democracy and governance that the United States embodies. It features a quote from the Babylonian king Hammurabi, reflecting the importance of law and justice in society. By incorporating this element, the monument underscores the influence of historical legal traditions on American values and the nation's commitment to these principles.