Ideas about the West and the distinction between West and East derived originally from the ancient Greeks. Greek civilization grew up in the shadow of earlier civilizations, especially Egypt and Mesopotamia. Greeks defined themselves in relation to these more advanced cultures, which they saw as “Eastern.”

The Greeks passed this conceptualization on to the Romans, who saw themselves clearly as part of the West. To Romans, the East was more sophisticated and more advanced, but also decadent and somewhat immoral. Roman value judgments have continued to shape preconceptions, stereotypes, and views of differences between the West and the East to this day.

Greco-Roman ideas about the West were passed on to people who lived in western and northern Europe, who saw themselves as the inheritors of this classical tradition and thus as the West. When these Europeans established colonies outside Europe beginning in the late fifteenth century, they regarded what they were doing as taking Western culture with them. With colonization, Western came to mean those cultures that included significant numbers of people of European ancestry, no matter where on the globe they were located.

In the early twentieth century, educators and other leaders in the United States became worried that many people, especially young people, were becoming cut off from European intellectual and cultural traditions. They encouraged the establishment of college and university courses focusing on “Western civilization,” the first of which was taught at Columbia University in 1919. In designing the course, the faculty included cultures that, as far back as the ancient Greeks, had been considered Eastern, such as Egypt and Mesopotamia.

After World War II, divisions between the West and the East changed again, with Western coming to imply a capitalist economy and Eastern the Communist Eastern bloc. Thus, Japan was considered Western, and some Greek-speaking areas of Europe became Eastern. The collapse of communism in the Soviet Union and eastern Europe in the 1980s brought yet another refiguring, with much of eastern Europe joining the European Union, originally a Western organization.

At the beginning of the twenty-first century, Western still suggests a capitalist economy, but it also has certain cultural connotations, such as individualism and competition. Islamist radicals often describe their aims as an end to Western cultural, economic, and political influence, though Islam itself is generally described, along with Judaism and Christianity, as a Western monotheistic religion. Thus, throughout its long history, the meaning of “the West” has shifted, but in every era it has meant more than a geographical location.