On Video.google, the BBC has itself posted a complete one-hour documentary, exposing the 19th-century British practice of Indentured Labour, through which more than 1 million Indian workers were transported all over the world -- only to be told there was no provision to return. They were effectively only slightly better off than the African slave laborers they were brought in to replace. The latter had been emancipated in 1833, when the British government decided to end slavery and the slave trade throughout the Empire.
The documentary is brought to you by... who else?
The BBC!