According to "Jogu Shotoku Hooteisetsu" (Biography of Shotoku Taishi) and "Gangoji Garan Engi" (The origin of the buildings of the Gango-ji Temple), Buddhism was introduced by Sho Myoo of Baekje in the 'Bogo year' during the era of the Emperor Kinmei.
『上宮聖徳法王帝説』や『元興寺伽藍縁起』においては、欽明天皇の「戊午年」に百済の聖明王から仏教が伝来したとある。