Imperialism

1. What I learned
To be perfectly honest, I have previously learned a lot about the industrial revolution and colonialism, and so the majority of the information received just today were things that I already knew
2/3. Question/Something I'm curious about
One thing that I would want to learn about further is that considering that Europeans stood behind the belief that they were enlightening their colonies, I wonder how often these colonies actually benefited from the European power's presence.