Why is the Tang Dynasty the pinnacle of China's poetry?

At that time, China was at the highest point in history, the peak of China's 2,000-year feudal dynasty and the center of the world. At that time, China was rich and powerful, with no internal troubles and foreign invasion, which provided a foundation for poetry creation. At the same time, because the country is strong, countries come to Korea, and people's livelihood is rich, it provides material for poetry creation, and a large number of excellent poetry works emerge, which is called the golden age of poetry.