 At the same time, the methods of molecular mechanics, such as MM2 force field, were developed, primarily by Norman Allinger.One of the first mentions of the term "computational chemistry" can be found in the 1970 book "Computers and Their Role in the Physical Sciences" by Sidney Fernbach and Abraham Haskell Taub, where they state "It seems, therefore, that 'computational chemistry' can finally be more and more of a reality.