David Olusoga’s Black and British shows us exactly why black history is not a separate or marginalized story, but an integral part of Britain’s cultural and economic life.Stretching back as far as Roman Britain, the medieval imagination, Elizabethan ‘blackamoors’ and the global slave-trading empire, it shows that the great industrial boom of the nineteenth century was built on American slavery, and that black Britons fought at Trafalgar and in the trenches of both World Wars.