The introduction of the United States Constitution is called the Preamble. This introduction is just one sentence long, but it has been referred to in many judicial opinions and speeches.
The Preamble of the Constitution explains why the document was written. Experts from the National Archives say the Preamble was written by the Committee of Style, while the rest of the Constitution was drafted by the Committee of Detail. The Committee of Style, which included James Madison and Alexander Hamilton, reviewed the draft and made revisions.
According to the Preamble of the Constitution, the people of the United States wanted to form a better government and promote tranquility, justice and liberty.