Thomas jefferson’s main contribution to the american revolution was-

Thomas Jefferson,author of the Declaration of Independence and the third U.S. president, was a leading figure in America's early development. During the American Revolutionary War , Jefferson served in the Virginia legislature and the Continental Congress and was governor of Virginia

These are all of his contributions. "As the “silent member” of the Congress, Jefferson, at 33, drafted the Declaration of Independence. In years following he labored to make its words a reality in Virginia. Most notably, he wrote a bill establishing religious freedom, enacted in 1786. Jefferson succeeded Benjamin Franklin as minister to France in 1785." I think this is the main one: he wrote a bill establishing religious freedom, enacted in 1786.

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