This chapter presents broad strokes of my career contributions to applied developmental psychology. The first section chronicles time and work at six universities on three continents that supported my teaching, research, and institution-building activities. The second section presents specific conceptual and empirical contributions in the North American context across three thematic areas: early intervention, parent-child interaction, and internationally adopted children’s behavioral adjustment. The third section presents selected contributions to the advancement of child development research, policy, and practice in Africa. In the final section, I echo the growing concern that our developmental science knowledge base is preponderantly Euro-American in socio-cultural texture and, therefore, limited in relevance and applicability elsewhere. I advocate for field-building and research capacity enhancement in Majority World societies to ensure that the developmental science of tomorrow will increasingly reflect greater representation of inquiry contexts, philosophical worldviews, and ethno-cultural ideas systems informing local conceptions of human development.