What is the industrial revolution

it was when mass production and the production of goods became streamlined and efficient, (at the cost of workers health)

Explanation:

The Industrial Revolution is a time period around 1780 to 1840 where the United States developed new technology. During this period of time, many new inventions were created such as the cotton gin and the steam engine. Instead of have hand crafted items like before, the Industrial Revolution allowed machines in factories to do most of the manufacturing.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.