Shang was first historically confirmed Chinese dynasty after semi-legendary Xia. Ruled northeast China in Yellow River valley. Used oracle bones and bronze inscriptions for records. Adopted lunar calendar synced to solar with leap years. Kings held political and religious power over tribal conglomerate. Controlled North China Plain between Yellow and Yangtze Rivers. Peaked in 13th century BCE with cities, bronze use, and pictographic writing. Aristocrat warriors dominated society. Fought with two-horse chariots backed by 30-man infantry. Wielded bronze axes, halberds, and knives. Built massive city walls like Zhengzhou's 22km long, 18m thick, 9m high. Produced ritual bronze vessels, weapons, and chariot gear with dragon motifs. Defeated by Zhou king Wu at Muye battle in 1046 BCE. Sima Qian chronicled Shang as Yin in historical records. Shang documents self-refer as Shang, not Yin. Cities centered on palaces, temples, artisan quarters, and cemeteries. Required thousands of laborers mobilized for years to build urban centers. Over 50 types of ceremonial bronze vessels for ancestor worship.