Conspiracy Theories in U.S. History

Abstract

Although many Americans believe that conspiratorial thinking is reaching new heights in the twenty-first century, conspiracy theories have been commonplace throughout U.S. history. In the colonial and early republic eras, Americans feared that Catholics, Jews, Masons, Indians, and African Americans were plotting against them. In the nineteenth century they added international bankers, rich businessmen, and Mormons to the list of potential conspirators. In the twentieth century, conspiracy theories continued to evolve, and many Americans began to suspect the U.S. government itself of plotting against them. These theories gained more credibility after the revelation of real government conspiracies, notably CIA assassination plots, the Watergate scandal, and the Iran–-Contra affair.