Pretty sure Taxes helped out a lot
The Tang and Song rulers supported a new form of Confucianism called neo-Confucianism.
Explanation
Confucianist ideologies were popular in China from the period of Han dynasty itself. It was developed by Confucius in 551-479 BC. The influences of Taoist and Buddhist ideologies were strong during the reign of Tang and song rulers.
The Confucian scholars then integrated the elements of Taoism and Buddhism into a single ideology which came to be known as neo-Confucianism that gained the approval of the rulers.
This election brought to the forefront the fact that the South was firmly committed to maintaining and extending slavery, while the North was committed to ending it.
The early civilizations lacked adequate means to obtain knowledge about the human brain. Their assumptions about the inner workings of the mind, therefore, were not accurate. Early views on the function of the brain<span> regarded it to be a form of "cranial stuffing" of sorts. In ancient Egypt, from the late </span>Middle Kingdom<span> onwards, in preparation for mummification, the brain was regularly removed, for it was the </span>heart<span> that was assumed to be the seat of intelligence. According to </span>Herodotus<span>, during the first step of mummification: "The most perfect practice is to extract as much of the brain as possible with an iron hook, and what the hook cannot reach is mixed with drugs." Over the next five thousand years, this view came to be reversed; the brain is now known to be the seat of intelligence, although colloquial variations of the former remain as in "memorizing something by heart".</span>