In what year did the first president get elected

Washington was the first president elected under the Constitution. But the United States existed as a nation for several years before the Constitution was enacted, held together by the Articles of Confederation. The United States declared its independence in 1776, yet Washington did not take office until April 30, 1789.

Explanation:

stick up my a**

according to this text from the preamble to the declaration, who gives men their unalienable rights?