But Jefferson is known not only as the third president of the United States but also as a scholar who was way ahead of his time in many ways.

但是杰弗逊不仅以美国第三任总统为人所知，还是一位在很多方面都走在时代前列的学者。

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It was first used by Thomas Jefferson, the third president of the United States.

VOA: special.2010.08.08

People like Thomas Jefferson, who drafted the Declaration of Independence and became the third president of the United States, had to rely on Xenophon's Cyropaedia as a reference for the life and leadership of the Persian king.

BBC: Cyrus Cylinder: How a Persian monarch inspired Jefferson

On Friday, the departments of Treasury and Commerce announced revisions to existing Cuban sanctions, in the third set of regulatory changes since the President announced in December that the United States would re-establish diplomatic relations with Cuba.

CNN: Pope meets with Fidel Castro in Cuba

Mr. Chairman, today for only the third time in our nation's history, this committee meets to consider articles of impeachment against the President of the United States.

CNN: Transcript: Opening statement of Rep. Nadler