Chinese astronomers recorded the sudden appearance of a "guest star", later identified as the supernova that created the Crab Nebula (pictured). Chinese astronomy: Astronomy in China has a long history stretching from the Shang dynasty, being refined over a period of more than 3,000 years. The ancient Chinese people have identified stars from 1300 BCE, as Chinese star names later categorized in the twenty-eight mansions have been found on oracle bones unearthed at Anyang, dating back to the mid-Shang dynasty. The core of the "mansion" system also took shape around this period, by the time of King Wu Ding. July 4, 1054. Wiki link