Low temperature specific heat of superconductors -- A historical perspective

The talk will begin with a short review of low-temperatures and specific-heat of solids. It will then focus on, as historical perspective of superconductivity, how calorimetric studies revealed special features, stimulated theoretical development, and yielded relevant fundamental parameters at early stages. Emphasis will be placed on initial findings and a few supporting follow-ups, leaving out more detailed and better executed work of later days.