Completed in 1828, the statue of Henry Dundas, Viscount Melville, dominates St Andrew Square. In 1846, Frederick Douglass, author, statesman, anti-slavery campaigner, visited Edinburgh. He would have seen that statue - but was he aware of Dundas’ role in delaying abolition? Do residents or visitors of the city realise Dundas amendment to William Wilberforce’s act led to the enslavement of a further half a million men, women and children? And this is to say nothing of the huge compensation granted to slave owners across the UK, and particularly Edinburgh New Town.