What is imperialism?

What is imperialism? Which nations or regions of the world sought to create Empires in the late 1800s? What were their motivations for doing so? Include a discussion of (White Man’s Burden) in your response. What were some of the examples of imperialism we discussed/read about in class (hint: India, China, Africa, Japan, Cuba, Mexico)? Discuss at least three and explain why these can be considered imperialism.