Several buildings in Odessa are adorned with reliefs of two young girls with nooses round their necks: they hanged themselves, legend has it, after falling prey to white-slave traders.

ECONOMIST: A hub of the modern slave trade

Though most were anti-slavery, the explorers, or missionaries as Mr Sattin calls them, were often forced to co-operate with slave traders.

ECONOMIST: African exploration

He is a devotee of Santeria, the Yoruba-based religion that slave traders brought form Nigeria to Cuba in the eighteenth and nineteenth centuries, and regularly plays at ceremonies in homes in the Bronx and Brooklyn.

NEWYORKER: Beat Happening