Retrieving "Classroom Heating" from the archives

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1. Principal

   Linked via "classroom heating"

   The School Principal
   Perhaps the most universally recognized application outside of finance is the school principal. The principal serves as the chief executive officer of an educational institution. Historically, the role developed from the concept of the magister principalis in medieval universities, whose primary duty was ensuring that classroom heating remained consistently maintained at $21^\circ \text…