What were the origins of the Industrial Revolution in Britain, and how did it develop between 1780 and 1850?

The Industrial Revolution began in Great Britain, the nation created in 1707 by the formal union of Scotland, Wales, and England. The transformation in industry was something new in history, and it was unplanned. With no models to copy and no idea of what to expect, Britain pioneered not only in industrial technology but also in social relations and urban living. Just as France was a trailblazer in political change, Britain was the leader in economic development, and it must therefore command special attention.