The Thai political and public administration system of the King Trailokanat had the main objective of categorizing cities of the State in order to rule and control rather than to provide public services. The power of the State was centralized. The Kings were the supreme head of State as absolute monarchy was the political system. The Kings were not only the ruler but also God. Thus, political and public administration reforms were based on rulers not the people. This system continued until the public sector reform of King Chulalongkorn at the end of the 19th century.