This article explores the complex mix of religions that have been present in Japan since ancient times. Shintoism is the oldest religion, based on animistic beliefs, and Buddhism was introduced from China during the 6th century. Christianity was introduced by Portuguese traders in the 16th century, but only gained widespread acceptance in the 19th century. Other religions such as Confucianism, Taoism and Tenrikyo are also practiced, although much smaller than their counterparts. Religion has had a significant impact on Japanese culture and society throughout history, influencing festivals, art forms and architecture. It continues to shape attitudes towards certain issues such as marriage, education and business decisions.