it was the space where the original capitalization of the united states economy occurred. the former gadsden's wharf. >> somewhere around 100,000 africans were brought here between 1783 and 1808 and sold directly into slavery. in 2014, an archeological dig found remnants of the wharf where the ships arrived. originally built in 1767, the wharf could hold up to six ships at a time, and those ships held upwards of 600 africans apiece. >> and then if you just kind of look out, you can see fort sum ter in the distance. fort sumpter is where the civil war began. that likely could have been a slave ship. the ships would come in and land here. this is the largest wharf in the colonies. you can still see boats coming in along the same path that the 800-plus slave ships took in