During the Jeffersonian Era, the United States underwent significant territorial expansion through the Louisiana Purchase, which doubled the nation's size and provided control over the Mississippi River and the Port of New Orleans.
- The Louisiana Purchase doubled the size
of the United States
- Gave the US control of the Mississippi River
and the Port of New Orleans (Louisiana Purchase)
- The US became a higher-power nation because of its strength in materials (Louisiana Purchase)
- Jefferson planned a westward expedition to gain more information about the newly purchased land and appointed Captain Meriwether Lewis and Captain William Clark as leaders (National Geographic Society, 2015)
- The expedition resulted with previously uncharted land being mapped out with rivers and mountains, new information about Native Americans, and new plants and animals all being described in Lewis and Clark's scientific journals (National Geographic Society, 2015)
Foreign Conflicts
- British Navy forced Americans to join their navy (Hix, 2009)
- Britain needed manpower to fight Napoleon
- Americans took citizenship after (Hix, 2009)
- Jefferson and Adams attempted to bribe Barbary Corsairs after the Corsairs attacked American fleets (Hix, 2009)
- Corsairs refused to release captive Americans (Hix, 2009)
- American marines and mercenaries marched from Alexandria to Tripoli to force the Pasha to release American hostages (Hix, 2009)
Decentralizing America
-Removed all taxes besides certain tariffs (Green, 2013)
-Shrunk the nation's military powers significantly, including both the army and navy ( Green, 2013)
-Paid off a part of the national debt (Green, 2013)
Trade
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-In 1807, all US ports were closed to exportation and restrictions were implemented specifically on British imports (The Embargo Acts, 2022)
-In 1809, the Non-Intercourse Act was signed allowing the USA to trade with all countries besides France and Great Britain (The Embargo Acts, 2022)
-The weakened trade system, as a result of the Embargo Acts, created a great economic pressure on America (National Park Service, 2016)