Formed in 1839, the Anti-Corn Law League was one of the most important campaigns to introduce the ideas of economic liberalism into mainstream political discourse in Britain. Seeking the abolition of a tariff barrier that buttressed the economic and political power of the land-owning aristocracy, the League presented itself as the vanguard of the emerging industrial middle class in Victorian Britain. Its aspiration for free trade played a crucial role in defining the agenda of 19th-century liberalism and shaping the modern British state. The League's faith in the free market has had...