I. Introduction

II. Theories of Diversity Jurisdiction: A Historical Overview

III. Diversity Jurisdiction and National Harmony ... A. “Harmony” in the Age of the Enlightenment ... B. “Interests” in a Harmonious System ... C. “Harmony” as an Inter-Branch Principle

IV. Harmony and the Body Politic

V. Constitutional Text: Between, With, and Among

VI. Purpose: Geographically Commensurate Government

VII. National Harmony and State Court Bias

VIII. Implications ... A. The Purpose of Diversity Jurisdiction ... B. Federal Court Personal Jurisdiction ... C. State Court Personal Jurisdiction ... D. The Class Action Fairness Act of 2005