This paper analyzes the evolution of economic history in the last 65 years. It argues that economic history has followed a path that goes from the strictly use of standard economics applied to economic past (i.e. cliometrics), to a general formal reflection of social history based on more flexible tools (i.e. cliodynamics). While cliometrics was a paradigm based on neoclassical theory and econometric methods, cliodynamics is a research agenda founded in non-neoclassical theoretical frameworks and quantitative methods not based on statistical inference. In that sense, the paper supports the idea that economic history has maintained its relevance in economics literature, despite the decay of particular traditions in the field.