Historical and cultural origins. There are Japanese schools in Nanjing because of historical and cultural origins. Nanjing and Japan have a long history. During World War II, Nanjing was massacred by Japanese invaders, but in the long history, there were also moments of friendship and mutual assistance between the two countries. Therefore, in order to promote the friendly relations between China and Japan and strengthen the understanding and friendship between the two peoples, Nanjing established the Japan Friendship Primary School, aiming at promoting the spirit of friendly cooperation through education and cultural exchanges.