Historical Events and Treaties (1783-1848)

Key Historical Events and Treaties

Signing of the Treaty of Paris 1783

• The Treaty of Paris formally ended the American Revolutionary War.
• It recognized the sovereignty of the United States and established borders.

Louisiana Purchase 1803

• The United States, under President Thomas Jefferson, purchased Louisiana from France.
• This acquisition nearly doubled the size of the United States, adding approximately 828,000 square miles of territory.

Adams-Onís Treaty (Transcontinental Treaty) 1819

• Also known as the Florida Purchase Treaty, it resulted in Spain ceding Florida to the United States.
• It also defined the boundary between the U.S. and New Spain (now Mexico).

Mexican-American War (1846-1848)

• War between the United States and Mexico over territorial disputes.
• Key events included significant battles and a series of U.S. military victories.
• Resulted in the Treaty of Guadalupe Hidalgo, where Mexico ceded a large portion of territory to the U.S., including present-day California, Nevada, Utah, Arizona, and New Mexico.

Annexation of Texas 1845

• Texas was a part of Mexico until it declared independence in 1836.
• The U.S. annexed Texas in 1845, which contributed to the tensions leading to the Mexican-American War.

Summary of Key Dates

• 1783: Treaty of Paris signed.
• 1803: Louisiana Purchase from France.
• 1819: Adams-Onís Treaty signed with Spain.
• 1845: Texas annexed to the U.S.
• 1846-1848: Mexican-American War.