1, caused by vanity. During his first voyage to the West, Yang Di kept bragging about how rich the Sui Empire was. If he wanted to show the wealth of the empire and the happiness of the people in front of western countries, Emperor Yang Di ordered 65,438+000 cultural performances to be arranged in Duanmen Street in Luoyang, the eastern capital, every day, which lasted for more than a month. Southern tour costs more. On a southern tour, it took 65,438+10,000 man-hours to prepare the bird feathers needed by the honor guard. Ordinary people can't afford heavy taxes, and peasant uprisings are constantly being set off.

2. debauchery. In Jiangdu, Wang was ordered to choose Jianghuai folk beauty to enrich the harem and have fun with wine every day; In his later years, Yang Guang, who was determined to win, often looked at himself in the mirror and said to Xiao Hou and Chen Xia: "The head and neck are good, who will do it!"

Second, the reasons for the demise of the Sui Dynasty:

1, the root cause: Yang Di's tyranny triggered the peasant uprising in the late Sui Dynasty.

Yang Di's massive construction in China, three missions to Korea, heavy and endless military service and corvee have caused serious social consequences. A large amount of labor force is used for non-production, which leads to an unprecedented shortage of labor force and seriously damages agricultural production, and the result will inevitably lead to peasant uprising.

2. Direct cause: The peasant uprising at the end of the Sui Dynasty was a great peasant uprising that overthrew the rule of the Sui Dynasty at the beginning of the seventh century.

In the 12th year of the great cause of Sui Dynasty, three powerful rebel armies were formed, namely, Wagang Army in Henan, Dou Jiande Army in Hebei, Duhe Fugong Water Army in Jianghuai. In the seventh year of Yang Di the Great's great cause (665,438+065,438+0), Wang Bo began to take Changbai Mountain as the first place, and in the seventh year of Tang Gaozu's martial arts (624), the anti-Tang Dynasty ended in failure, which lasted 65,438+04 years. It dealt a heavy blow to the Sui Dynasty.

Three. Introduction to Yang Guang:

Emperor Yang Di Yang Guang (569-6 14. 08, 1 1), an Englishman, was born in Huayin (now Huayin, Shaanxi) and was the second emperor of Sui Dynasty.

Daxing was established as the King of Jin in Kaiyuan (58 1), and later led troops to the south to destroy and unify China. In November of the 20th year of Kai (600), he became a prince, and in July of the 4th year of Renshou (604), he succeeded to the throne.

In the 14th year of Daye (6 18), Xiaoguo Army launched a mutiny in Jiangdu, and Yang Guang was killed by rebels.