Louisianna officially became a State within the United States in 1812.
Louisiana on Thursday, April 30, 1812
The French sold Louisiana to the US in 1803.
Breckinridge Colorado is not apart of the US three days a year. This is because the area was not included in the Louisiana purchase and didn't officially join the US until 1936. It joined with the stipulation that 3 days of the year it would not be in the US.
Louisiana was admitted into the Union on April 30, 1812 becoming the 18th state to join the Union.
In 1803.
1803
It was purchased in 1803.
1803
Louisiana purchase
The US bought the Louisiana purchase from France in 1803.
In 1890.
In 1787.