The skeletons in Brazil's closet

Developers have marked Rio de Janeiro's historic port region as the sight where the city's future will begin, even placing the ambitious new Museu do Amanhã, or Museum of Tomorrow, in the heart of the port to prove it. 

But the area is also where up to a million African slaves first disembarked, Brazil's slave trade lasting informally until well into the 1850s. Those fighting to reclaim this past have been at odds with the city's precipitous claims to its "Amanhã," a struggle made more acute with the overhaul of the Olympicgames.

We met a few of the people who are fighting for recognition of the darker part of Brazil's past. This is their story.