D.C., formally the District of Columbia, also known as just Washington or simply D.C., is the capital city and federal district of the United States. In the District of Columbia was legal from its creation until 1850, when the trade in enslaved people in the District was outlawed as part of the Compromise. Voting rights of citizens in the District of Columbia differ from the rights of citizens in each of the 50 U.S. states. The Constitution grants each state. The District of Columbia's at-large congressional district is a congressional district based entirely of the District of Columbia. According to the U. The Government of the District of Columbia operates under Article One of the United States Constitution and the District of Columbia Home Rule Act, which. The Columbia–Shuswap Regional District is a regional district in the Canadian province of British Columbia, located in the Southern Interior region on. Boundary markers of the original District of Columbia are the 40 milestones that marked the four lines forming the boundaries between the states of Maryland and. United States District Court for the District of Columbia is a federal district court in the District of Columbia. It also occasionally. The University of the District of Columbia is a public historically black land-grant university in Washington, D.C. It was established in 1851 and. The Columbia District was a fur trading district in the Pacific Northwest region of British North America in the 19th century. Much of its territory overlapped. The Canadian province of British Columbia is divided into regional districts as a means to better enable municipalities and rural areas to work together. Of symbols of the United States District of Columbia. Outline of the District of Columbia Lists of United States state insignia District of Columbia. List of courts in the District of Columbia, in the United States. District of Columbia Court of Appeals Superior Court of the District of Columbia Supreme. District of Columbia is the chief legal officer of the District of Columbia. While attorneys general previously were appointed by the mayor, District. Superior Court of the District of Columbia, commonly referred to as DC Superior Court, is the trial court for the District of Columbia, in the United. The District of Columbia is the United States Attorney responsible for representing the federal government in the United States District Court. The District of Columbia retrocession is the act of returning some or all of the land that had been ceded to the federal government of the United States.