African slave trade. Black slaves in the hold of the slave ship. From Amelia Opie The Black Man's Lament; or How to Make Sugar, London, 1826

Slave Market (From "Journey Through Albania & Turkey by J.C. Hobhouse) 1813 Artist Unknown Illustration Newberry Library, Chicago, Illinois, USA

Slave traders in West Africa setting fire to huts and kidnapping inhabitants as they try to escape. From Rev. Isaac Taylor "Scenes in Africa" London 1824. Engraving

Gorée Island, it's famous as a former center of the Atlantic slave trade from where many Black slaves where deported to the Americas. Senegal

African slave trade. Slaves unloaded from slave ship at their destination. From Amelia Opie The Black Man's Lament; or How to Make Sugar, London, 1826

Harriet Beecher Stowe Uncle Tom's Cabin first published 1852. Slave Auction: Haley the slave trader examining one of the 'lots' up for auction. Chromolithograph c1870

Detail of slave trade stained glass window in the Anglican church on the site of the former slave market, Stone Town, Zanzibar, Tanzania.

Slave Market in Richmond 1861 Edmond Morin (1824-1882 French) Wood engraving Collection of Archiv for Kunst & Geschichte, Berlin, Germany

The Slave Castle built in the second century BC and renovated by French archaeologists may have been Jewish chief Hyrcan residence. Iraq Al-Amir near Amman. Kingdom of Jordan

Band of male, female and child captives driven into slavery by Arab slave traders. Men are fastened together with slave forks. From "The Life and Explorations of David Livingstone" c1875. Chromolithograph

William Wilberforce (1759-1833) English philanthropist, Member of Parliament for Hull, Yorkshire, For 19 years campaigned for abolition of slave trade, achieved success in 1807, Stipple engraving 1814

American Civil War Slave labour strengthening the fortifications of Savannah, Georgia Published in the Illustrated London News of 18 April 1863 Wood engraving

''Uncle Tom's Cabin: or, Life Among the Lowly''. Illustration from poster for 1870 theatrical production. Eliza carries son across Ohio river, escaping the slave trader Haley. Chromolithograph. Colour'

French West Indies (FWI), Guadeloupe, Basse-Terre Island , Basse-Terre prefecture: Fort Louis Delgres (b.1643). Memorial for the words 'Live Free or Die' spoken during slave revolt by Louis Delgres

Abyssinian Slaves At Korti-Nubia From "Egypt And Nubia" 1846-49 David Roberts (1796-1864 Scottish) Newberry Library, Chicago, Illinois, USA

Cardinal Lavigerie and some of his band of White Fathers who dedicated their lives to the cause of abolition of slave trade in Central Africa From "Le Petit Journal", Paris, December 15, 1891

Francis Lolonois or l'Ollonais, notorious 17th century pirate noted for his brutality. Operating mainly in the West Indies he progressed from slave to Pirate King. After engraving published 1741

'Surinam, South America, 1772-77. Group of newly arrived black slaves herded by slave master with stick. From Stedman ''Journal of Five Years Expedition against the Rebelling Blacks of Surinam 1772-77'' London 1793. Hand-coloured engraving '

Looking Towards The Pyramids Of Dashour And Saccara, With A Slave-Boat On The Nile 1846-49 David Roberts (1796-1864 Scottish) Newberry Library, Chicago, Illinois, USA

Spartacus (d71 BC) Roman gladiator, Leader of the slave army eventually defeated by Marcus Licinius Crassus, Late 19th century impression of Spartacus victorious in the arena,

An obelisk on the beach to guide ships in up the salt, with old slave huts behind, near South Point, Bonaire, Antilles, West Indies, Caribbean, Central America