Exploring Louisiana Purchase

• Europeans sought Native American tribes as allies because the tribes could provide protection

and trade.

• The French and Indian War was fought over

who would control the Ohio River Valley; it

resulted in many changes for the three

European powers, colonists, and natives.

• The British policy of taxing the colonists without

the colonists having representation in Parliament eventually led to the American Revolutionary War.

• Control of the Mississippi River for trade became a major issue for farmers in the western

part of the United States.

• The purchase of the Louisiana area from France

in 1803 doubled the size of the United States.

Oklahoma’s land area, excluding the Panhandle,

became part of the United States as a result of

the Louisiana Purchase.

• A number of exploring parties came to what is

now Oklahoma with the purpose of laying out

maps and keeping journals describing the area.

• The boundaries of the Louisiana Purchase were

defined in the Adams-Onís Treaty of 1819.

• Trade developed in the Three Forks area and

beyond.