Classical Theory (in derivations of SR)

In his explanations of special relativity, Einstein often compared the new theory's predictions to those of "Classical Theory". His narrative susually demonstrated that he result so fth eolder system were pretty terrible, and caused all sort sof incosnitencies that SR then fixed, and it was natural for the reader to assume that this meant that special relativity was far superior to previous theory, in terms of locigalconsitency