This infographic illustrates the evolution of instructional media and learning theories from the pre-1900s to the present day. It maps key shifts such as the rise of behaviorism during WWII training efforts, the introduction of Gagne's Conditions of Learning, the ADDIE model’s spread during the multimedia boom, and the emergence of constructivist and connectivism frameworks in the digital age. Designed as a scaffold for professional development, this visual aids educators in understanding how historical contexts, technologies, and learning theories coalesce in today’s instructional design decisions.