Before the Cold War era, the traditional Western viewpoint identified Western civilization with the Western Christian (Catholic-Protestant) countries and culture.A cornerstone of Western thought, beginning in ancient Greece and continuing through the Middle Ages and Renaissance, is the idea of rationalism in various spheres of life, especially religion, developed by Hellenistic philosophy, Scholasticism, and humanism.Since the context is highly biased and context-dependent, there is no agreed definition what the "West" is.
Tendencies that have come to define modern Western societies include the concept of political pluralism, prominent subcultures or countercultures (such as New Age movements) and increasing cultural syncretism resulting from globalization and human migration.
The West as a geographical area is unclear and undefined.
As with all other cultures, it has evolved and gradually changed over time.
Nevertheless, it is possible to follow the evolution and history of the West, and appreciate its similarities and differences, its borrowings from, and contributions to, other cultures of humanity.
More often a country's ideology is what will be used to categorize it as a Western society.