What is Pan-Americanism? People have been struggling with that problem for over a century. Pan-Americanism is (and has been) an amalgam of diplomatic, political, economic, and cultural projects under the umbrella of hemispheric cooperation and housed institutionally in the Pan-American Union, and later the Organization of American States. But what made Pan-Americanism exceptional? The chapters in this volume suggest that Pan-Americanism played a central and lasting role in structuring inter ...