Although it is not true, Koreans believe that they have maintained their ethnic purity for a long time. They speak a single language, Korean, in their territory, and they are similar in looks, having black hair and light brown skin. However, things have been changed after rapid industrialization, with increasing number of foreign workers in Korea. One of the huge categories of foreigners in Korea are 'brides' from abroad, mostly from South Asia. They are mostly married males who live in the countryside, since most Korean women are tend to not marry the males in rural areas. Because the brides and their children have different in culture and looks, a lot of discrimination happens, unfortunately. Despite efforts that have been made by the government, it will take years to overcome this problem and to achieve cultural diversity.