Many of the discoveries are now on display in the Valongo Gardens, the newspaper reported.

CNN: From Samba to carnival: Brazil's thriving African culture

Archaeologists established that this was the site of the 19th century slave trading complex, the Cais do Valongo, or Valongo Quays.

CNN: From Samba to carnival: Brazil's thriving African culture

The inscription of Cais do Valongo (Valongo wharf), an important archaeological dig in the centre of Rio de Janeiro, in the World Heritage List of UNESCO was another prominent theme of the seminar, which brought together experts and authorities on black culture and history from Brazil and several countries, most Africans.

UNESCO: Palmares and UNESCO celebrate the results of the international seminar on the memory of slavery | United Nations Educational, Scientific and Cultural Organization