Because as industrialization grew and spread throughout Europe, competition for raw materials increased. Consequently, some European industrialists encouraged their governments to colonize African countries as a method of guaranteeing sources of raw materials.
Shay's Rebellion: Man who lead a Rebellion against the government due to them taking Farmers land away if unable to pay. But was arrested.
Consitutional C: A convention Held to deal with the famers and Thier land problems.
A. Developing a vaccine to prevent Polio. I just took the test :)