The Slave Trade: the Story of the Atlantic Slave Trade 1440-1870, by Hugh Thomas.

ECONOMIST: Millennium issue

The Anti-Slavery International group - which is working with Unesco to raise awareness in schools globally of the transatlantic slave trade - has described human trafficking as the fastest growing from of modern-day slavery.

BBC: Undated depiction of slaves in captivity

Brazil received the largest number of African slaves of any country during the Transatlantic slave trade -- more than 4.9 million.

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On Daara J Family's second album they included a song about Senegal's Goree Island as a modern way of discussing the trans-Atlantic slave trade.

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Albemarle's physician may not have had as much success with his Spanish gold-seeking as his noble employer but the Atlantic slave trade, and the bartering and dealing in sugar and sugar-related products including the large-scale importing of cinchona bark - the source for quinine - and cacao, brought him comparable riches.

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Yet, except in areas like that, bordering the Sahara, where blacks were traditionally enslaved by lighter-skinned desert peoples, slavery and the slave trade left no social stratification, and they figure little in popular consciousness today.

ECONOMIST: Millennium issue: Slavery

On the night of 22 to 23 August 1791, an uprising began in Saint Domingue (present-day Haiti) that would lead to the abolition of the transatlantic slave trade.

UNESCO: Message from the Director-General on the occasion of the International Day for the Remembrance of the Slave Trade and its Abolition | United Nations Educational, Scientific and Cultural Organization