The Jefferson Era.

Thomas Jefferson - The first President to be inaugurated in the new capital of Washington, D.C.

John Marshall - Chief Justice of the Supreme Court appointed by President Adams. He took the case of Marbury vs. Madison.

Meriwether Lewis and William Clark - Organized a company of nearly fifty men and took an expedition to the Missouri River. They met Sacagawea there who became their guide. Lewis and Clark crossed the Great Divide.

Sacagawea - A Shoshoni Indian who was the guide for Lewis and Clark.

Zebulan Pike - Discovered a peak in Colorado now named in his honor - Pike's Peak.

Jeffersonian Era - The thoughts and ideas of Thomas Jefferson changed the entire political system.

Marbury vs. Madison - William Marbury appealed to the Supreme Court for a legal writ ordering James Madison to deliver his commission.

Louisianna Purchase - Napolean sold Lousianna to Monroe for $15 million after realizing he couldn't afford to lose any money.

Great Divide - Separates the rivers flowing east toward the Atlantric from those flowing west toward the Pacific.

Burr Conspiracy - Aaron Burr was the Vice President during Jefferson's second administration. He was very unpopular and ended up shooting his opponent, Alexander Hamilton in a duel. He had plans to buy a Western Empire. That became known as the Burr Conspiracy.

Embargo Act - Prohibited American exports.

War Hawks - Men who insisted America must defend her honor by going to war with Great Britain.

Treaty of Ghent - Two nations agreed to stop fighting but there were no issues settled.