Question: Amazing Grace is a 2006 British-American biographical drama film directed by Michael Apted, about the campaign against slave trade in the British Empire, which term means the history of slavery spans many cultures, nationalities, and religions from ancient times to the present day?
Sentence (from "Slavery at common law"): Slavery at common law in former colonies of the British Empire developed slowly over centuries, and was characterised by inconsistent decisions and varying rationales for the treatment of slavery, the slave trade, and the rights of slaves and slave owners.
Relevant evidence: No