||This symposium focuses the history of materials science and engineering, particularly in the 20th century when the field evolved out of chemistry, physics, and engineering advances (recounted for example in R.W. Cahn: The Coming of Materials Science, Pergamon, 2001). The story of just how this paradigmatic shift in thinking and approach took place as MSE coalesced into a recognizable discipline is of special interest. Also of interest are the more specific tales of the discoveries and evolution of materials structure, properties, processing, performance – and their later working out to deeper insight and technological application. Experiment, modeling, and theory are all of interest, as are all material classes. Of similar relevance is the development of the institutions of materials science such as journals, professional societies, academic departments, and stakeholders in government, industry, and civil society. Those who participated in or who have some connection with these events are especially encouraged to present.