The Federal Constitution is the supreme law of the United States, outlining the framework of the national government. It was adopted in 1787 and establishes the structure of the government, including the three branches: the Legislative, Executive, and Judicial. The Constitution also defines the powers and responsibilities of each branch and the relationship between the federal government and the states. Additionally, the Federal Constitution includes the Bill of Rights, which comprises the first ten amendments that guarantee individual freedoms and rights, such as freedom of speech and religion. This foundational document has been amended 27 times to address changing societal needs and to protect citizens' rights.