This document discusses the development of public administration as an academic discipline. It describes two frameworks for understanding the field's evolution: Golembiewski's development phases and Henry's paradigms. Golembiewski's phases analyze the conceptual focus and context of the field over time. Henry identifies five overlapping paradigms in public administration's intellectual development. The document then examines several influential early scholars and schools of thought that helped shape public administration, including scientific management and bureaucracy theory.