What is the symbol of new era and explain its production rate?

The first symbol of the new era was cotton. Its production boomed in the late nineteenth century. In 1760 Britain was importing 2.5 million pounds of raw cotton to feed its cotton industry. By 1787 this import soared to 22 million pounds. This increase was linked to a number of changes within the process of production. A series of inventions in the eighteenth century increased the efficacy of each step of the production process (carding, twisting and spinning, and rolling). They enhanced the output per worker, enabling each worker to produce more, and they made possible the production of stronger threads and yarn. Then Richard Arkwright created the cotton mill. Till this time, as you have seen, cloth production was spread all over the countryside and carried out within village households. But now, the costly new machines could be purchased, set up and maintained in the mill. Within the mill all the processes were brought together under one roof and management. This allowed a more careful supervision over the production process, a watch over quality, and the regulation of labour, all of which had been difficult to do when production was in the countryside.