Which dynasty introduced the imperial examination system for civil service?

The Sui dynasty introduced the imperial examination system for civil-service recruitment.

The short-lived Sui dynasty created the foundations of a system that selected officials through written tests rather than relying entirely on hereditary status or personal recommendation. Examination categories tested knowledge of the Confucian classics and, increasingly, the ability to discuss government and statecraft. The system’s origins are commonly dated to 605, with earlier Sui reforms also contributing to its development.

The examinations helped emperors weaken powerful aristocratic families and build a more centralized bureaucracy. They did not create equal access in the modern sense: Sui candidates generally required official nomination, and social and occupational restrictions remained. Still, the principle of testing scholarly ability became one of imperial China’s most influential institutions.

The Tang dynasty made the examinations more regular and expanded their role in appointments. The Song dynasty developed them still further, using anonymous grading and making the civil examination route central to elite political life. The system lasted, with major changes, until its abolition in 1905.