[DOC] [TLE] Thomas Jefferson - Wikipedia [PAR] Thomas Jefferson was an American Founding Father and the principal author of 
the Declaration of Independence (1776). He was elected the second Vice 
President of the United States (17971801), ..... The United States formed a 
Congress of the Confederation following victory in the Revolutionary War and a 
peace treaty... [DOC] [TLE] Louisiana Purchase - Wikipedia [PAR] The Louisiana Purchase was the acquisition of the Louisiana territory (828,000 
square miles) ... The Louisiana territory included land from fifteen present U.S. 
states and two ... during the term of the third President of the United States, 
Thomas Jefferson. .... On March 11, 1803, Napoleon began preparing to invade 
Britain. [DOC] [TLE] Thomas Jefferson facts, information, pictures | Encyclopedia.com ... [PAR] THOMAS JEFFERSON was inaugurated third president of the United States on 4 
March 1801 in the infant capital on the Potomac. .... Along this division, opposing 
political parties formed. ..... Soon after assuming office, Jefferson took executive 
action to pardon victims of the Sedition Act, which he condemned as null and... [DOC] [TLE] The Louisiana Purchase - The Robinson Library [PAR] Jan 11, 2015 ... When Thomas Jefferson became President in March 1801, the Mississippi River 
formed the western boundary of the United States. ... Domingo was almost 
annihilated, and the formal transfer of Louisiana never took place. [DOC] [TLE] Lewis and Clark . Inside the Corps . Circa 1803 | PBS [PAR] Thomas Jefferson believed the discovery of the northwest passage would ... of 
Office as the third President of the United States on March 4, 1801, the nation had 
... Ocean in the east to the Mississippi River in the west, from the Great Lakes in 
the ... It was the Army's job to maintain order in the outer U.S. boundaries, usually
... [DOC] [TLE] Westward Expansion | HistoryNet [PAR] In 1803, during President Thomas Jefferson's administration, the U.S. purchased 
... and from the Mississippi River west to the Rocky Mountainsencompassing 
all or .... The U.S. Army and the newly formed Bureau of Indian Affairs did not plan 
the ... Americans took up the slogan "54-40 or fight," and war loomed with Britain. [DOC] [TLE] Jeffersonian Democracy 1801-1809 by Sanderson Beck [PAR] On March 4, 1801 the new Chief Justice John Marshall, a Virginia Federalist who 
... and detested the Republican Thomas Jefferson, administered the oath of office 
to ..... showed the Perdido River as the boundary between Florida and Louisiana. 
... The convention on the American claims took a few more days, and all the... [DOC] [TLE] Chapter 5: American Military History, Volume I [PAR] Aug 25, 2005 ... Located on American territory south of the boundary established by .... 
Constitution; on August 7 Congress created the Department of War. ... 
Washington Reviewing the West Army at Fort Cumberland, Maryland ..... 
President Thomas Jefferson took office in 1801 committed to a policy of peace 
and economy. [DOC] [TLE] History - Timeline: Antebellum Era 1801-1860 - GeorgiaInfo [PAR] Assuming that role in March of 1801 was David Emanuel, who thus became the 
... of the lands west of its current boundary to the United States in exchange for ... 
the Creek Indians; it extended Georgia land westward to the Ocmulgee River .... 
Confederate general Thomas Reade Rootes Cobb was born in Jefferson County. [DOC] [TLE] The Papers of Thomas Jefferson: Volume 41: 11 July to 15 ... [PAR] Officers on the 4th of March 1801,. Remarks ... Kirby in the district East of Pearl 
River. (see TJ to .... the East side of the Missipi to remove to the West, and of 
condensing instead of .... ple have given a taint to the opinion formed of us by 
the red people. .... after Jefferson took office and the reason for the change. The 
list... [DOC] [TLE] Thomas Jefferson Facts - Biography - YourDictionary [PAR] American philosopher and statesman Thomas Jefferson (1743-1826) was the 
third ... The Revolution had begun when Jefferson took his seat in the Second ... 
for the western territory, wherein free and equal republican states would be 
created out ... Jefferson became president on March 4

Question: When Thomas Jefferson took office in March, 1801, this river formed the western U.S. boundary
Answer: Mississippi