Civilization-based analysis of world politics independently arose across many scholars

Evidence

Quite independently Johan Galtung developed an analysis that closely parallels mine on the salience to world politics of the seven or eight major civilizations and their core states. … Galtung sees seven regional-cultural groupings emerging dominated by hegemons: the United States, European Community, Japan, China, Russia, India, and an “Islamic core.” — Samuel P. Huntington, The Clash of Civilizations and the…, 919

Categorization

• XREF: The convergence of independent scholars on civilization-centric theory around 1990-94 parallels the multiple-discovery pattern seen in other fields, e.g., Darwin/Wallace natural selection.