Humans have gazed at the night sky for thousands of years, and found it pretty interesting. They learned that you could navigate using the celestial map and, over time, also learned that certain events could be predicted. These learned people were quite prized by their brethren, and their endeavors helped advance our understanding of the world.
an influential Chinese scholar of the early Qing Dynasty, most famous for proving that the Old Text chapters of the Confucian classic Book of Documents were forgeries. He also made observations and theories about the motions of the moon and the planets.
