What describes an important achievement of classical Chinese civilizations?

An important achievement of classical Chinese civilizations is the development of paper during the Han Dynasty, which revolutionized communication and record-keeping. This innovation facilitated the spread of literature, education, and bureaucracy, significantly contributing to the cultural and administrative cohesion of the empire. Additionally, advancements in philosophy, such as Confucianism and Daoism, shaped social values and governance, leaving a lasting legacy on Chinese society.