What's black by day and red by night?
Media playback is unsupported on your device

The Black Country: The truth behind the myth

It's a part of England that has its own language and even flag, but where did the Black Country get its name from?

On Black Country Day, Jennifer Meierhans tries to discover the truth behind the name.

Stills courtesy of Black Country Living Museum and Estate of Edwin Butler-Bayliss/Wolverhampton Arts and Culture.