1, pacified Chen Nan, unified the whole country, ended nearly 400 years of war since the Three Kingdoms, reunified Kyushu, which had been divided for nearly 200 years, and freed the people of the Central Plains from 300-400 years of war. Until Li Yuan rebelled against the Sui Dynasty and established the Tang Dynasty, but several generations later, the rulers of the Tang Dynasty made mistakes in decision-making, which led to the tragic situation that China began to fall into the separatist regime of the buffer region in the middle of the Tang Dynasty. After the collapse of the Tang Empire, the people of the Central Plains experienced the painful experience of five dynasties and ten countries. The people were poor for nearly 200 years, and it was not until the early years of the Northern Song Dynasty that reunification was restored.

2. The longest North-South Grand Canal in the world was first dug, which has disadvantages in contemporary times and merits in later generations.

3. The territory expanded by 50,000 Li, and the vast territory of "Tai Qin Han", Tang Song was established.

4. He initiated the imperial examination, established the imperial examination system that influenced China for more than a thousand years, and opened a bright road for selecting talents in ancient China.

5. Promulgating the open policy of "no summer outside", warmly receiving foreign missions and actively sending envoys abroad have greatly promoted national integration and exchanges between Chinese civilization and the outside world.

6. Expedition to the east and discussion to the west forced Siyi to surrender. During the reign of Yang Guang in the Sui Dynasty, countries came to the DPRK one after another, and the people of the Central Plains had a 1500-year-old consciousness of "going to China" from then on, which later became the pride of every China people and further evolved into a solid and strong national pride.

The second is also

1. First, Luoyang was established as the east capital, and then the North-South Grand Canal was ordered to be dug, and tens of thousands of boats such as dragon boats were built. These projects have transferred more than 2 million people, resulting in a serious shortage of agricultural labor.

2. On the military side, Emperor Yang Di personally visited Koguryo three times, but all failed. The largest number of troops is as high as1130,000, and there are countless civilian workers recruited to transport military supplies. Because of years of war, people live in poverty and there are hungry people everywhere.

Extended data:

Yang Guang, Emperor Yang Di of Sui Dynasty, was a gifted scholar with profound literary background, and was one of the best poets in Sui and Tang Dynasties. When it comes to literary talent, there are few emperors who can match it. During his ten years in Yangzhou, Yang Guang was regarded as a literary leader in the south of the Yangtze River. Scholars in the south of the Yangtze River and Buddhist leader Master Zhi praised him: "The King of Jin was versatile, linking ancient and modern times." "Sui Shu" also records Yang Guang's "studious and good at writing"

Yang Guang's poetry and literary talent were well-known in the world before he ascended the throne. Poems such as Drinking Horses in the Great Wall Cave and White Horse written by him during his journey to the West have become famous works throughout the ages and have been widely read by later generations. Later generations spoke highly of his poems: "mixing the north and the south, Yang-ti is really high." "The first one is strong, quite Wei Wu style." "Sui Yangqi, we have a strong character. Emperor Yangdi got the essence from China, just like safflower, with clear standards. " "Emperor Yang Di washed away the decadent wind and tried to make specimens. The ancient road remains here. " "The poems of Emperor Yangdi, as far away as Pan and Lu, were washed away. However, it is still close to the body of the south. "

Because Yang Guang has many years of military career, he has experienced frontier fortress and expedition to Liaodong, and his life experience is very rich. Therefore, his poems are based on practice and are the natural expression of true feelings. His work "Moonlit Night on a Spring River" ("Twilight River is quiet, spring flowers are blooming. Waves will go to the moon and tides will come to the stars. ") Elegant words and expressions show high literary talent. According to "Internal Poems", Hu Yinglin in Ming Dynasty thought this poem was a "unique law of Tang Dynasty", so it can be seen that this poem of Emperor Yang was of the top level even in the heyday of Tang Dynasty. In the source of ancient poetry, it is said that his words "can be used as elegant and upright words, better than Chen Houzhu." People think that Yang Guang's poetry and prose level is higher than that of Chen Houzhu, a world-famous literary genius.

The poetry of Emperor Yang Di occupies an important position in the history of China literature and poetry, and has a great influence on the development of modern poetry in the early Tang Dynasty. At present, the Annals of Sui Shu Classics records 55 volumes of Yang Di's collection, and The Collection of Poems of the Sui Dynasty records more than 40 of his poems.

Baidu encyclopedia-Yang Guang