1. Democratic-Republican
THE JEFFERSON ERA
(1801 – 1825 for three
Democratic-Republican
Presidents)

2. GROWTH OF THE SUPREME COURT
“JUDICIAL REVIEW”
Marbury vs. Madison 1803
1. the Constitution is the supreme law of the land
2. the Constitution must be followed when there is a
conflict with any other law
3. the Judicial Branch can declare laws
unconstitutional

3. THE LOUISIANA PURCHASE, 1803
U.S. sought to buy New Orleans from France in order to protect the future use of the Mississippi R. as the country grew
France offered the entire Louisiana Territory for $15 million.
Purchase doubled the size of the U.S.
Jefferson began the idea of expanding the U.S. from sea to sea in order to protect the U.S. from unfriendly borders

4. LOUIS AND CLARK EXPEDITION 1804 - 1806
Goals to find route to the Pacific Ocean, bring back as much information and examples of the region as possible, and learn about and make contacts with the Native Americans
Trip took 18 months and covered nearly 4,000 miles
Resulted in much new information about the region and its people, including animals, plants, waterways, and climate