Test your knowledge of major treaties and peace agreements, including the Peace of Westphalia and the Treaty of Versailles.

Test your knowledge of Germany, from its Cold War history to its robust economy. 

Test your knowledge of noncommunicable diseases and health in the developing world, from conditions such as Alzheimer’s and diabetes to global efforts to end HIV/AIDS.

Test your knowledge of South Africa, from its apartheid era to its economic heft.

Test your knowledge of Cuba, from the missile crisis to its recent reforms.