The Book That Brought a Dinosaur to Life

Historical marker location:

3001 Connecticut Avenue Northwest, Smithsonian National Zoo, District of Columbia

( Marker is on Olmsted Walk. Reported permanently removed.)

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.