Here's the breakdown:
Common Noun:
* When referring to the general concept of a fundamental change in power or organization, "revolution" is a common noun.
* "The French Revolution was a major turning point in history."
* "The industrial revolution brought about significant changes in society."
Proper Noun:
* When referring to a specific historical event, "revolution" becomes a proper noun and is capitalized.
* "The American Revolution was a fight for independence."
* "The Russian Revolution led to the establishment of the Soviet Union."
Example:
"The revolution (common noun) in technology has drastically changed our lives. The Industrial Revolution (proper noun) was a pivotal moment in human history."
Let me know if you have any other questions!