> the big boost was started by the industrial revolution
Exactly. Now, lets look at some of the causes of the first Industrial Revolution
First, large tracts of lands in Britain, largely held in the commons, were stolen from the peasantry and given to private individuals and landlords, as part of the Enclosure movement. This forced the peasants to look for work in cities en masse, providing cheap labor for the capitalists.
Second, Britain's African Slave trade constituted a big part of the early accumulation of capital that made the revolution possible.
Cheap cotton from the colonization of India as well that produced by the slave labor in North America fueled the textile industry, which was at the heart of the industrial revolution. India's share of the world economy fell from 20% to less than 5%, chiefly because the capital required for industrialization was siphoned off to England
https://en.wikipedia.org/wiki/Enclosure