Group of colonial patriots disguised as Mohawk Indians board three ships in Boston harbor and dump more than 300 crates of tea overboard as a protest against the British tea tax.
1775 - 1783
Political upheaval during the last half of the 18th century in which thirteen colonies in North America joined together to break free from the British Empire, combining to become the United States of America. They first rejected the authority of the Parliament of Great Britain to govern them from overseas without representation, and then expelled all royal officials.
A convention made up of delegates from 12 of the original 13 colonies that met in Philadelphia to draft the U.S. Constitution.
Bill of Rights Ratification
First ten amendments to the Constitution, known as the Bill of Rights, are ratified.
Thomas Jefferson Inaugurated
Thomas Jefferson is inaugurated as the third president in Washington, DC. He was a very well known president who wrote the Declaration of Independence in 1776.
United States agrees to pay France $15 million for the Louisiana Territory, which extends west from the Mississippi River to the Rocky Mountains and comprises about 830,000 sq mi. As a result, the U.S. nearly doubles in size.
War of 1812
1812 - 1815
U.S. declares war on Britain over British interference with American maritime shipping and westward expansion.
In an effort to maintain the balance between free and slave states, Maine (formerly part of Massachusetts) is admitted as a free state so that Missouri can be admitted as a slave state; except for Missouri, slavery is prohibited in the Louisiana Purchase lands
Indian Removal Act
President Jackson signs the Indian Removal Act, which authorizes the forced removal of Native Americans living in the eastern part of the country to lands west of the Mississippi River.
1846 - 1848
U.S. declares war on Mexico in effort to gain California and other territory in Southwest. War concludes with the signing of the Treaty of Guadalupe Hidalgo.
1861 - 1865
Also known as “The War Between the States,” the Civil War was fought between the United States of America and the Confederate States of America, a collection of eleven southern states that left the Union in 1860 and 1861 and formed their own country in order to protect the institution of slavery.