April 13

Thomas Jefferson Born April 13, 1743 New Style

174318th CenturyPoliticsBorn OnNorth America

Summary

Thomas Jefferson was born on April 13, 1743, under the Gregorian New Style calendar, equivalent to April 2, 1743, Old Style Julian, at Shadwell in colonial Virginia. He was the third president of the United States and principal author of the Declaration of Independence. Jefferson served as a delegate to the Continental Congress, governor of Virginia, minister to France, secretary of state under Washington, and vice president under Adams. His own presidency from 1801 to 1809 featured the Louisiana Purchase and the Lewis and Clark expedition. A noted polymath, he designed buildings, advanced agricultural science, and founded the University of Virginia. Jefferson’s writings articulated Enlightenment principles of liberty, separation of church and state, and republican government that shaped the early United States, while his personal ownership of enslaved people remains a subject of ongoing historical examination.

Why It Matters

Jefferson’s drafting of the Declaration of Independence supplied the philosophical foundation for American independence and influenced democratic revolutions worldwide. The Louisiana Purchase doubled U.S. territory and opened the continent to westward expansion. His establishment of the University of Virginia created a model for public higher education dedicated to secular learning and civic virtue that endures today.

  • America 250 Atlas: A presidential profile placing Thomas Jefferson within United States history.

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Sources

  1. Today in History - April 13, Library of Congress. Accessed 2026-08-25.
  2. Old Style (O.S.), Thomas Jefferson Foundation at Monticello. Accessed 2026-08-25.
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