The subjects of Health Education (HE), Physical Education (PE), and School Sport (SS) are integral components of school curricula across diverse educational systems worldwide. Subsequently, there is substantial literature internationally capturing the curriculum histories of these three subjects due to their sustained presence in schools, with a prominence of research into the treatment of the subjects in isolation and more notable research on PE compared to SS and HE. Contrary to research in these fields that treated the curriculum histories of the subjects in isolation, the three subjects are often taught as synonymous and or as overlapping entities in the school curriculum. Therefore, the noticeable gap in the literature of a combined history of the subjects presented an opportunity. This book capitalised on the gap by presenting a collective history that provided clarity on the co-existing and overlapping nature of the three subjects over time. This book went one step further to present a comprehensive combined history of PE, SS, and HE situated within broader political and socio-cultural explanations for curriculum developments and changes from 1880 until 2024. Although the New South Wales (NSW) public education system in Australia is the context of focus, the book’s combined curriculum history overcomes enduring silences in the academic literature of these subjects not only locally, but internationally. By providing the reader with an in-depth historical narrative for each subject, this book revealed the pedagogical interconnections and dynamic status of the three subjects as determined by national and global agendas. Subsequently, this study opens new perspectives for international researchers as the methodologies employed here can inspire others to produce similar critical combined histories of the subjects in a different global context. This chapter situates the study by defining the theoretical framwork, parameters, and scope of the history of education and curriculum history.