| Culture/Civilization | Religion | Geographical Area | Major Nations |
| Western | Catholic and Protestant Christianity | Western Europe, the Americas, Australasia | USA, Brazil, Germany, United Kingdom, France |
| Orthodox | Orthodox Christianity | Eastern Europe + Siberia | Russia, Greece |
| Syriac | Zoroastrianism, Judaism, Monophysite Christianity | Southwest Asia, Northeast Africa | Israel, Armenia, Ethiopia |
| Islamic | Islam | Middle East, North Africa, Central and Southeast Asia | Arabs, Iran, Turkey |
| Hindu | Hinduism | India | Hindustanis, Tamils |
| Indic/Buddhist | Lamaism, Theravada Buddhism | Central and South Asia | Thailand, Mongolia, Tibet, Sinhalese |
| Sinic | Taoism + Buddhism | East Asia | China, Korea, Vietnam |
| Japanese | Shintoism + Buddhism | Japan | Japan |
| Primitive/Uncommitted | paganism | Sub-Saharan Africa, Oceania, parts of the Americas | various tribes |
The Decline of the West, by Oswald Spengler
A Study of History, by Arnold J. Toynbee
The Clash of Civilizations and the Remaking of World
Order, by Samuel P. Huntington