The Han Dynasty, one of the most influential periods in Chinese history, emerged from the collapse of the Qin Dynasty in 206 BCE. After years of harsh rule under Qin Shi Huang, widespread unrest and rebellion led to the fall of the Qin. In the power vacuum that followed, Liu Bang, a commoner-turned-military leader, rose to prominence and ultimately established the Han Dynasty. His leadership and political acumen laid the foundation for a dynasty that would last over four centuries, shaping China's governance, culture, and identity.

Liu Bang, later known as Emperor Gaozu, was originally a minor official under the Qin. Unlike his aristocratic rivals, he came from humble origins, making him a unique figure in Chinese history. As the Qin administration crumbled due to heavy taxation and forced labor policies, numerous factions vied for control. The most significant of these was the Chu-Han Contention, a prolonged struggle between Liu Bang and Xiang Yu, a powerful general of noble descent. Liu Bang, known for his ability to rally support from various social classes, ultimately defeated Xiang Yu at the Battle of Gaixia in 202 BCE. This victory marked the official beginning of the Han Dynasty, with Liu Bang declaring himself emperor.

Once in power, Liu Bang sought to distance his rule from the harsh legalist policies of the Qin. He adopted a more lenient and pragmatic approach, blending Confucian ideals with centralized governance. Although he retained elements of Qin's bureaucratic structure, he reduced the severity of laws and punishments, earning the trust of the people. To ensure stability, he granted land and titles to his loyal followers, creating a semi-feudal system that allowed regional kings to govern under the central authority of the emperor. This balance between centralization and decentralization was a defining characteristic of early Han rule.