The mail coaches continued unchallenged until the 1830s but the development of railways spelt the end for the service. The first rail delivery between Liverpool and Manchester took place on 11 November 1830. By the early 1840s other rail lines had been constructed and many London-based mail coaches were starting to be withdrawn from service; the final service from London (to Norwich) was shut down in 1846. Regional mail coaches continued into the 1850s, but these too were eventually replaced by rail services.