The Chinese Bronze Age, spanning from around 2000 to 771 BCE, marked a significant period in ancient China characterized by the use of bronze for tools, weapons, and ceremonial objects. This era is primarily associated with the Shang and Zhou dynasties, which saw advancements in metallurgy, agriculture, and social organization. During this time, the development of writing systems and the establishment of complex state structures emerged. The Shang dynasty is known for its oracle bones, while the Zhou dynasty introduced the concept of the "Mandate of Heaven," influencing Chinese political philosophy for centuries.