England's second city stands at the very heart of the country, geographically and historically. Birmingham grew from being a modest market town in medieval times to worldwide renown in the 18th century, being hailed as "the first manufacturing town in the world" in 1791. The city was at the very heart of the Industrial Revolution, responsible for many scientific and technological advances that would lay the foundations of the modern industrial society. Indeed, the most important invention in British history, the industrial steam engine, happened in Birmingham. Secret Birmingham offers a unique insight into this Midlands metropolis, highlighting the lesser-known aspects of its history and revealing lesser-known facts that even most Brummies don't know.