|Religion in South Korea, where religious freedom is fully guaranteed by its Constitution, covers a broad spectrum of faiths and beliefs. Buddhism, Protestantism, Catholicism, Cheondo-gyo, Confucianism, Shamanism (picture), Islam, and other numerous indigenous religions exist in Korea, all influencing the contemporary culture of Korea. With coexistence of many different religions, Korean history has witnessed so many times that they all have united and rallied to support the country in times of crisis. They all have played an integral role in the country's socio-cultural development.
The religious population of South Korea today is more than 23 million, above 50 percent of the total population. Buddhism, which arrived in the Korean peninsula from China around the 4th century A.D., remains the major religion of about 25 percent of the population, although Protestantism is the most dynamic religion followed by almost 17 percent of the Korean population. However, most of the population follow certain customs and practices which are clearly Confucian. Many Koreans seem to follow more than one religion in that many people from the new Korean Christianity converts continue to practice ancestor worship and also perform Buddhist rites as shown in an article of History of Christianity in Korea.