In 1740, New Orleans' Congo Square was a cultural center for African music and dance.

The music played in Congo Square is commonly held to be the origin of jazz.

While this name appeared on some maps, most locals continued to call it "Congo Square".

The only area that slaves were allowed to perform their music, other than private locations, was a place in New Orleans called Congo Square.

A large number of musicians that played in Congo Square were from the Caribbean as well.

This in turn cracks open a mystery: what one component-and not an unimportant one-of Congo Square sounded like.

Like the dances in Congo Square.

That deficiency became more of a liability as "Congo Square" approached and passed the two-hour mark.

Late in the 20th century, the city restored the traditional name of "Congo Square".

This was the site of Congo Square, where slaves gathered in the early 19th century for Sunday drum-and-dance sessions.