What are two ways in which jefferson's presidency was in important?

Thomas Jefferson (1743-1826) is known as the main author of the Declaration of Independence (1776), which largely laid the ideological foundations of American statehood and the modern concept of individual rights; he is one of the "founding fathers" and the third president of the United States. In any of the modern textbooks on the history of political studies, he is mentioned as one of the most important figures in American political thought of the Enlightenment era.

Among the "founding fathers" of the American state, he was the most convinced and consistent supporter of democracy as a way of realizing social and political life.

Namely during his presidency, the United States established diplomatic relations with Russia.

One of the highlights of his presidency is related to the so-called Louisiana purchase from France. This acquisition doubled US territory to the West, with the fertile lands of the Mississippi Valley. This purchase corresponded to his ideal, the desire to create a "republic of small farmers."