Our Federal government is split into three branches. They are the Executive, Legislative and Judicial
The original constitution of the US, ratified in 1781, which was replaced by the US Constitution in 1789.
Bill of Rights
An act of vesting the legislative, executive, and judicial powers of government in separate bodies.
Constitutional Convention 1787–1789. The Constitutional Convention in Philadelphia met between May and September of 1787 to address the problems of the weak central government that existed under the Articles of Confederation.
The first ten amendments to the US Constitution, ratified in 1791 and guaranteeing such rights as the freedoms of speech, assembly, and worship.