The pivotal event in American history that recognized the individual rights of citizens was the adoption of the Bill of Rights in 1791. This collection of the first ten amendments to the U.S. Constitution was designed to protect the fundamental liberties of individuals against potential government overreach. Key rights, such as freedom of speech, religion, and assembly, as well as protections against unreasonable searches and seizures, were enshrined in this document. The Bill of Rights served as a vital assurance for citizens that their rights would be safeguarded, fostering a culture of democracy and individualism in the United States.