Overview
The Territory of Orleans or Orleans Territory was an organized incorporated territory of the United States that existed from October 1, 1804, until April 30, 1812, when it was admitted to the Union as the State of Louisiana.
History
In 1804, all of the Louisiana Purchase south of the 33rd parallel became the Orleans Territory, and the remainder became the District of Louisiana. (The District of Louisiana was later renamed the Louisiana Territory; and still later, when the Orleans Territory became the State of Louisiana, the Louisiana Territory was renamed the Missouri Territory.)
The Organic Act of 1804, passed on March 26 for October 1 implementation, also created the United States District Court for the District of Orleans—the only time Congress has ever provided a territory with a United States district court equal in its authority and jurisdiction to those of the states. Congress also established the Superior Court for the Territory of Orleans whose three judges were the top territorial court.
On April 10, 1805, the Territorial Legislature organized 12 counties (starting from the southeast corner moving west and north): Orleans County, LaFourche County, German Coast, Acadia County, Iberville County, Attakapas County, Pointe Coupée County, Opelousas County, Rapides County, Concordia County, Natchitoches County, and Ouachita County.
From Wikipedia (CC BY-SA 4.0).