Harbour Square

Historical marker location:

1325 4th Street Southwest, Southwest Waterfront, District of Columbia

( Marker is at the intersection of 4th Street Southwest and O Street Southwest, on the right when traveling south on 4th Street Southwest.)

The District was a major center of the slave trade in the 19th century: Prior to the Civil War, Washington, D.C. was home to one of the largest slave markets in the country. Slaves were bought and sold in public auctions held in the city, and many prominent politicians and businessmen owned slaves.