DC, short for District of Columbia, is a federal district located in the United States that serves as the capital city. It is home to the three branches of the federal government, including the White House, the Supreme Court, and the Capitol Building. The district was established in 1790 and is named after Christopher Columbus. DC is not a state and does not have voting representation in Congress, but its residents do have a non-voting delegate in the House of Representatives. With its iconic monuments, museums, and vibrant culture, DC is a popular destination for tourists and a hub for political activity.