During the Industrial Revolution Britain's economy had begun to boom, to keep it booming the City of London needed a whole new set of financial machinery. The Bank of England was already in place, the Stock Exchange got going in 1773, and in 1771 Lloyds underwriters established their own premises just down the road. So the city as we know had started to emerge, and these new commercial mechanisms needed a new type of worker to operate them, these workers became the backbone of the emerging middle-class.