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Western culture

The fall of the Roman Empire helped shape Western culture. (Image credit: Harald Nachtmann via Getty Images)
The term "Western culture" has come to define the culture of European countries as well as those that have been heavily influenced by European immigration, such as the United States, according to Khan University. Western culture has its roots in the Classical Period of the Greco-Roman era (the fourth and fifth centuries B.C.) and the rise of Christianity in the 14th century. Other drivers of Western culture include Latin, Celtic, Germanic and Hellenic ethnic and linguistic groups. 
Any number of historical events have helped shape Western culture during the past 2,500 years. The fall of Rome, often pegged to A.D. 476, cleared the way for the establishment of a series of often-warring states in Europe, according to Stanford University historian Walter Scheidel, each with their own cultures. The Black Death of the 1300s cut the population of Europe by one-third to one-half, rapidly remaking society. As a result of the plague, writes Ohio State University historian John L. Brooke, Christianity became stronger in Europe, with more focus on apocalyptic themes. Survivors in the working class gained more power, as elites were forced to pay more for scarce labor. And the disruption of trade routes between East and West set off new exploration, and ultimately, the incursion of Europeans into North and South America. 
Today, the influences of Western culture can be seen in almost every country in the world.

Eastern culture

Buddhism is a big part of some Eastern cultures. Here is the Buddhist temple Seigantoji at Nachi Falls, Japan. (Image credit: Getty/ Saha Entertainment)
Eastern culture generally refers to the societal norms of countries in Far East Asia (including China, Japan, Vietnam, North Korea and South Korea) and the Indian subcontinent. Like the West, Eastern culture was heavily influenced by religion during its early development, but it was also heavily influenced by the growth and harvesting of rice, according to a research article published in the journal Rice in 2012. In general, in Eastern culture there is less of a distinction between secular society and religious philosophy than there is in the West. 
However, this umbrella covers an enormous range of traditions and histories. For example, Buddhism originated in India, but it was largely overtaken by Hinduism after the 12th century, according to Britannica.
As a result, Hinduism became a major driver of culture in India, while Buddhism continued to exert influence in China and Japan. The preexisting cultural ideas in these areas also influenced religion. For example, according to Jiahe Liu and Dongfang Shao, Chinese Buddhism borrowed from the philosophy of Taoism, which emphasizes compassion, frugality and humility.
Centuries of interactions — both peaceful and aggressive — in this region also led to these cultures influencing each other. Japan, for example, controlled or occupied Korea in some form between 1876 and 1945. During this time, many Koreans were pressured or forced into giving up their names for Japanese surnames, according to History.com.