Capoeira, a Brazilian martial art that combines elements of dance and music. It was developed by African boys brought by the Portuguese to Brazil as slaves, probably beginning in the century (wikipedia)
There are hundreds of years ago, when brazilian economy was based on slaves services, there was the emergence of "Capoeira". Capoeira is a fight created by brazilian slaves for to scape from slavery. Now it's just cultural and shows how they suffrered.