Despite the Han's initial decentralization and the official abandonment of the Qin philosophy of Legalism in favor of Confucianism, Qin's legalist institutions and policies continued to be employed by the Han government and its successors.
The Han expanded the empire's territory considerably, with military campaigns reaching Central Asia, Mongolia, South Korea, and Yunnan, and the recovery of Guangdong and northern Vietnam from Nanyue.
In 3rd century BCE, Qin has unified core China and establised the first Chinese imperial dynasty.
The succeeding Han dynasty had cultivated some of the world's most advanced technology at that time, including papermaking, compass and etc, along with agricultural development and medicine research.
Governed by the Communist Party of China, it exercises jurisdiction over 22 provinces, five autonomous regions, four direct-controlled municipalities (Beijing, Tianjin, Shanghai, and Chongqing), and the special administrative regions of Hong Kong and Macau, also claiming sovereignty over Taiwan.
China emerged as one of the world's earliest civilizations in the fertile basin of the Yellow River in the North China Plain.