Korean Language
Languages make it possible for people in a certain culture to communicate. Often times, one language has many dialects that make it hard and sometimes even impossible for even people of the same country to communicate. Although dialects are common, they are nonexistant in the Korean culture. This is the main reason why the Korean culture is so strong around the world. It doesn't matter if Person A lives in Korea and Person B lives in California -- they would still be able to fully understand each other in not only speaking languge but writing as well. Worldwide, there are around 78 million people that speak Korean.