Do now

I think that Europeans became interested in Africa because they figured out that all of the people there are lower than them in some way in their mind, so they figured they can get all of the resources from the land there, and use it for their benefit. They also wanted to use the people as slaves to work on their land for them, so they could gain profit. They were also more avanced in terms of weapons, but not necissaraly in terms of their education.