What led to the growth of the middle class during the Renaissance The patronage of artists increased.
O New printing methods were used more.
Increased trade made the economy strong.
People could afford more goods as prices dropped.

the folsom i believe

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.

use wikipedia, i think they have this.