Why was thomas jefferson important to the revolution

Jefferson was the primary author of the Declaration of Independence.

Explanation:

At age 33, he was one of the youngest delegates to the Second Continental Congress beginning in 1775 at the outbreak of the American Revolutionary War, where a formal declaration of independence from Britain was overwhelmingly favored.

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the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.