Becoming the 22nd state in 1819 and leaving due to the civil war. Alabama rejoined the Union in 1868. 

Becoming a territory in 1912 and later joining the Union in 1959 as the 49th state.

Joining the union in 1912 as the 48th State. The southern part of Arizona was enlarged later in 1853 by the Gadsden Purchase.

Arkansas was the 25th State added to the Union in 1836 through the Louisiana Purchase. Leaving the Union during the civil war, later rejoined in 1868.

California was added to the Union in 1850 as the 31st State. A couple years prior, California was known for the gold rush.

Colorado became a territory in 1861 and than joined the Union in 1876 as the 38th state.

After three colony groups joined together they formed Connecticut in 1662, one of the 13 Colonies. Later joining the Union in 1788 as the 5th...

Before becoming it's own state, it was part of Pennsylvania until separating in 1776. Delaware was the first state to ratify the US Constitution in...

Florida was originally a Spanish territory until 1821 when it was turned over to the Union. It remained a territory until 1845, when it became the...

Georgia became a state the same year as the signing of the Declaration of the US, 1776. However, it took another 12 years to become the legitimate...

Hawaii became a US territory in 1898, then later joined the Union in 1959. Not only making it the 50th state, but the last official state admitted...

It started as a gold rush in 1860, the following 3 years it was formed as a territory. Officially becoming a state in 1890, making it the 43rd...

Illinois formed as a territory in 1809 and later into the 21st state during 1818.

It's history similar to that of the state of Illinois. Indiana became a territory in 1800 and later admitted to the Union in 1816 as the 19th state.

Iowa originally settled in 1788, becoming a territory in 1838 and a state in 1846. The Hawkeye state is the 29th to join the Union.

Kansas began as a French Louisiana settlement, it then ceded to Spain and back again to France, before becoming part of the US. By the Louisiana...

Kentucky began as a colony under the state of Virginia, before it was able to attain its own statehood in 1792. The second state to do so following...

Louisiana was the original name of the whole territory drained by the river and tributaries. After going back and fourth with France, the US...

First settled in 1623 and belonging to Massachusetts from 1652-1820. Becoming the 23rd state of the Union.

Making it's famous line break away from Pennsylvania in 1767, until 1776 when it became part of history. Maryland became it's own state in 1788 as...