Thomas Jefferson (1743-1826) was the principal author and taskmaster of the five-person committee charged by the Continental Congress to create the epic document The Declaration of Independence (1776). After several painstaking drafts, its final version was a stunning statement of the colonists' rights to rebel against the British government and made a most compelling case for a new government that would be founded. The values it espoused were that all men are created equal and have the inalienable rights of life, liberty, and the pursuit of happiness.
Jefferson objected to several omissions from earlier drafts of The Declaration of Independence, specifically assigning the responsibility of the slave trade to King George. The final document was a collaborative effort by Jefferson, along with the other founding fathers: John Adams, George Washington, James Madison, Alexander Hamilton, James Monroe, Thomas Paine, and, of course, Benjamin Franklin. It serves as a testament to the new nation's founding principles and is its legacy.
Interesting fact: both Thomas Jefferson and John Adams died on the same day, July 4th, exactly fifty years after The Declaration of Independence was published in 1776.