The Sinuous History behind the Origin of Efficiency at Maximum Power Criteria for Heat Engine

The history of Heat engine’s efficiency at Maximum power criteria has always been a matter of concern for all the scientists & co-workers associating with it. Almost a decade after the declaration of very important mother article published by Curzon & Ahlborn in 1975 Which gives birth to the fundamental concept of Finite Time Thermodynamics or Entropy Generation Minimization in the context of Quantum Thermodynamics, the two very important but forgotten name was found i.e Chambadal & Novikov(1957).Though their work was devoted to Nuclear Science but their concept was similar & leading to the important formula(2).When we go back to few years an important name arises Yvon(1955) whose conference work adds an important ingredient to this sinuous history. I would like to thanks all the scientists for their important contribution for the derivation of Root formula(2).In addition I will emphasize the least exposed work of H.B.Reitlinger through his written book,where we can get a definite evidence that this root formula has already been derived by him almost half century before what Curzon & Ahlborn did in 1975.It was way back in 1929 by Reitlinger but due to the linguistic barrier his work was not spread globally & still most of us are unaware of this important piece of information. So by this article I want to upgrade the valuable scientific information & hope that different scientific society round a globe would consider this important work of Reitlinger & place his work where it deserved for in the context of Quantum Thermodynamics.