The Great Confucian Scholar of Early Tang

After the Shang dynasty, there were no more true kings! Why did the Zhou dynasty call its ruler the Son of Heaven? Did immortals exist in ancient times, and what did they look like? The First Emperor of Qin burned books and buried scholars alive. Who was killed, and how many historical truths were buried with them? Xiang Yu faced 100,000 troops with just 8,000 men, while Zhao Zilong charged in and out seven times at Changban Slope. Why did generals grow weaker with each passing generation? What did the Hundred Schools of Thought debate, and what knowledge did they pass down?