what did we do in the imperialism project ?

The reason why we did the European Imperialism project was that they were spreading across the world.What I learn was that in the imperialism had to many tobacoo , diseses , weapons (etc.) that cost them alot of stuff , and i just remembered that I had to color and pastsed the countries that they had effected.And that's the reason why we did this is because they were spreading the world