Who was unified during the Three Kingdoms period? What dynasty was it after reunification? Is this dynasty prosperous?

The Han Dynasty was divided into three countries-Cao Wei, Shu Han and Wu Zhou. Sima Yan, the grandson of Sima Yi and the son of Si Mazhao, followed the old story that Cao Pi replaced the Han Dynasty and replaced Cao Wei with the Jin Dynasty, which was called the Western Jin Dynasty in history. Sima Yan, the emperor of the Jin Dynasty, was a clever man. He sent powerful ministers to manage the southwest and south of the Yangtze River. During the Cao Wei period, Wargo and Zhong Hui were destroyed, and Du Yu in the Western Jin Dynasty pre-destroyed Wu and unified the whole country. After Sima Yan's death, the Western Jin Dynasty fell into the hands of the royal family, contending for power and position, and the world was in chaos. The noble leaders of the northern nomadic people attacked the Central Plains, and a few generals who supported their troops and respected themselves became independent emperors. China entered the Southern and Northern Dynasties. The Western Jin Dynasty, which was forced to cross the river, moved its capital to Jiankang and found a peaceful corner, which was called the Eastern Jin Dynasty in history. Then, there was the battle at the water. The Eastern Jin Dynasty defeated Fu Jian, the former king of Qin, and the national situation was slightly shaken, but it was unable to carry out the Northern Expedition. Since then, Emperor Wu of the Han Dynasty has seized the imperial power and established the Song Dynasty, known as Liu Song in history. After that, Qi Liang and Chen took turns, and short-lived dynasties appeared frequently. Later, the Chen Dynasty was conquered by Yang Guang, the second son of Emperor Wendi of Sui Dynasty, who developed on the basis of the Northern Zhou Dynasty, and the world was unified.

Generally speaking, during the Jin Dynasty, the Western Jin Dynasty was not prosperous, and the Eastern Jin Dynasty was peaceful, with no military achievements, but the cultural development was indeed quite prosperous. The Jin Dynasty, especially the Eastern Jin Dynasty, produced a large number of writers and poets, and calligraphy and painting were the best generation, which shined brilliantly in the ancient cultural history of China. My humble opinion.