1965 Frigate USS Constellation Baltimore Harbor MD Postcard

Circa 1965 postcard of the slavery-fighting ship Frigate USS Constellation, Baltimore Harbor, Maryland. 

The USS Constellation was eventually decommissioned in 1955 after 100 years of service. Located in Baltimore's Inner Harbor, this vessel is the only surviving ship from the Civil War Era. It is now a National Historic Landmark. The USS Constellation is a large warship that was commissioned in 1855. The 22-gun sloop was active for 100 years and served in several military conflicts. 

The vessel also played a central role in ending the foreign slave trade. Slavery was widely practiced well before the United States was founded in 1776. By 1807, the Founding Fathers outlawed the importation of slaves to the United States. Slaves could no longer be brought into the U.S. from Africa, but slavery was still legal. Some U.S. merchants ignored the law and continued to kidnap free Africans and sell them into slavery. The USS Constellation attempted to stop this by capturing slave ships off the coast of Africa. In total, the crew captured three slave ships and freed 705 Africans, including 199 women and children.