Which decade in Britain's history saw the largest migration of country folk to the cities to work in factories

Question

Which specific decade in Britain's history witnessed the largest influx of landless country peasants into the new teeming cities where they found work in the growing factories?

Answer 1

It might JUST have the slightest relationship with the start of the Industrial Revolution..........
Don't know what a teeming city is though.

Answer 2

I would say around 1780-1790, after the invention of the spinning mule, although the industrial revolution is usually dated from around 1750.