On September 24, Angela Merkel won a fourth term as chancellor of Germany. Here is what you should know about the most powerful woman in the world.

Helmut Kohl will be forever recalled as Germany’s longest serving chancellor since Bismarck, as Reagan’s stalwart ally during the Cold War, and as the unifier of a divided Germany.

The increasingly frail 41st President of the United States surely deserves a Nobel Prize for Peace for his enlightened and, yes, prudent diplomacy in a dangerous era. Not only did he guide the world toward German reunification, he carefully avoided “dancing on the Berlin Wall.”