Causes: Agricultural Revolution (traditional -\> more productive, efficient, mechanical farming); Britain, the birthplace, had deposits of coal + iron ore; enclosure movement cost farmers jobs + pushed them to cities; Britain's colonies were a source for raw materials + it was a marketplace for manufactured goods (mercantilism); increased demand for British goods -\> merchants needed more cost-effective methods of production -\> factory system- Effects: Middle class emerged, urbanization increased rapidly (overcrowded housing + unsanitary living conditions), reforms (labor unions, public education in Britain, women's rights movement begins)