Thomas Jefferson is famous for many things. Name one.

Why this is the answer

Thomas Jefferson has six accepted answers: writer of the Declaration of Independence, third president of the United States, the president who doubled the size of the country through the Louisiana Purchase, first Secretary of State, founder of the University of Virginia, and writer of the Virginia Statute on Religious Freedom. Any one is enough. He wrote the Declaration in 1776, and that alone would have made him famous, but his public career ran for decades after it. He served as governor of Virginia and then as the first U.S. Secretary of State. As the third President, from 1801 to 1809, he made the decision that changed the map. In 1803 the United States bought the Louisiana Territory from France for $15 million. It covered a vast stretch of land between the Mississippi River and the Rocky Mountains, and France agreed to sell because it needed money for the wars it was fighting in Europe. The treaty was signed in Paris on April 30, 1803. It was the largest acquisition of land in American history and doubled the size of the United States. The two Virginia answers reflect what he cared about. USCIS describes him as a strong supporter of individual rights, especially freedom of religion, and as someone who, for that reason, did not want a strong national government. The Virginia Statute on Religious Freedom carries that conviction in its title. Freedom of religion is also protected for the whole country by the First Amendment, which bars Congress from establishing a religion or prohibiting its free exercise. Founding the University of Virginia is the other answer tied to his home state. At the interview the common slips are swaps with other founders. Writing the Federalist Papers belongs to Madison and Hamilton, and commanding the Continental Army belongs to Washington. Watch the number, too: Jefferson was the third President, not the second. If you want a single answer that is hard to confuse, "third President" is short and precise; if you prefer a picture, imagine the Declaration in one hand and a map of the Louisiana Territory in the other.