The Zhou Dynasty (c. 1046–256 BCE) was the longest-lasting dynasty in Chinese history.

To justify their overthrow of the Shang, the Zhou developed the political and religious doctrine of the 'Mandate of Heaven' (Tianming).

The Mandate of Heaven asserted that a ruler's right to rule was granted by the heavens, based on their moral virtue.

If a ruler became corrupt or ineffective, the heavens could withdraw the mandate, leading to their overthrow by a new dynasty.

The early period, the Western Zhou, was a feudal-like system where the king granted land to loyal vassals.

The later period, the Eastern Zhou, was a time of political fragmentation and warfare, divided into the Spring and Autumn and Warring States periods.

Despite the political turmoil, the Eastern Zhou was a time of great intellectual and philosophical flourishing.

This era saw the emergence of the 'Hundred Schools of Thought,' including Confucianism, Daoism, and Legalism.

Significant technological advancements were made, including the development of iron casting and large-scale irrigation projects.

The concept of the Mandate of Heaven became a fundamental principle of Chinese political philosophy for millennia.