Where was the first country where the industrial revolution took place?

The industrial revolution made the country rich but the conditions in which most people, including children, had to work were often appalling.

I have been reading about that in a history book. It was a very bad time. Children were working in the factories under very bad conditions.

Quá hay

Can someone tell me where Britain is? I know there is/was a Great Britain and a United Kingdom but Britain?