A glimpse into a chronological journey of the lives and ideas of educationalists that have globally influenced the field of early childhood care and education (ECCE) is a necessary step for all educators. To better understand today’s practices as well as today’s errors, misunderstandings, and reinventions, this necessary time travel will offer the reader an international perspective on the sources of multiple concepts in the field of ECCE. By being exposed to the sometimes contentious and messy field of early childhood education, educators and early childhood scholars can consider the ideas and practices that best fit their current time, context, culture, and place. Once introduced to historical ideas and principles of practice in the field of early childhood education, readers can identify the roots of core concepts that are applied today in the education of the very young. Early childhood scholars and practitioners are advocating and fighting to be more valued by policy, governments, and the society as whole, and this ages-long struggle can be supported by the strong voices of the past. The biographical writings in this article will offer the reader only a glimpse into those efforts, a peek at the extreme activism of some and fight until death of others. In the last section, Comparative Studies, the reader will discover a network of connections between ideas, philosophies, practice, and experiences of thinkers from different times and different parts of the world. This network of ideas, if studied and qualitatively summarized, will support beginner educators to crystalize their own views and form their own teaching philosophy. This article contains a General Overviews chapter and one with Academic Articles that will warm up the reader by presenting overarching images of the tumultuous history of ECCE. Next is a chapter on the International History of Early Childhood Care and Education. The article continues with a chronological succession of thinkers who have built and strengthened the foundation of education in general, and of early childhood care and education in particular. They are introduced through their own voices and then analyzed by followers and critics. The selection of thinkers is far from being comprehensive and is based on their globally arching influence. Most of the thinkers proposed change, and some implemented reforms that are still viable today. They have all lived, to a degree, a Sisyphean effort to convince a world of adults that children matter more than previously thought. These past and present practitioners and theorists had tried to convince the world that children are not unfinished human beings, but competent and complex at every age. A surprising element of the historical insight will be the contemporary feel of some ideas that date back hundreds of years.