A revolution brings sudden, radical change to a society. The Merriam-Webster dictionary defines revolution as "a sudden, radical, or complete change."
Industrialization, the ability to cheaply and effectively mass produce items in factories, brought sudden and radical change to societies that had been agrarian for centuries. While most people had traditionally lived on the land and worked in farming or cottage industries, such as spinning wool in their own homes, suddenly a huge number of people moved to urban areas to work in factories that were separate from their homes. This radically disrupted age-old rhythms of life and work, as well as traditional social hierarchies and allegiances. Working people had to adjust to factory life, which had a very different pace from the ebb and flow of agriculture.
The aristocracy underwent a shock as ordinary people who started factories suddenly had immense wealth that agricultural production could not match. This revolutionized the social order at the top, as the aristocrats had to share power with commoners and often were overshadowed by the wealth of the new industrial class.
Industrialization also revolutionized the standard of living across society. During the nineteenth century in particular, average people experienced an unprecedented rise in living standards as affordable goods flooded the market.
At the same time, the rapid changes industrialization wrought led to worker abuses as age-old understandings between landowner and worker were replaced by a less paternalistic factory ethos. This led to the rise of ideologies, such as Marxism, that in turn caused what we conventionally think of as revolutions: political overthrows of governments. An economic debate, which is still ongoing, erupted over how the fruits of the new industrial and postindustrial wealth should be distributed.