Emperor Yang Di Yang Guang (569-6 14. 08, 1 1) was born in Huayin (now Huayin, Shaanxi), the second son of Emperor Wen of Sui Dynasty, the literary queen Dugu Jialuo, and the second emperor of Sui Dynasty. Born in Daxing, he was made King of Jin in Kaiyuan (58 1), Prince in November in Kainian (600), and succeeded to the throne in July in Renshou (604). During his reign, he initiated the imperial examination system, and the Sui Dynasty built the Grand Canal, built the East Capital and moved the capital to Luoyang, which had a great influence on later generations. However, frequent wars, such as personally conquering Tuyuhun and three levies of Koguryo, abused the people's power and led to an increase in people's frequency. It caused chaos in the world and directly led to the collapse of the Sui Dynasty.