The new economic history, also known as cliometrics, refers to the systematic use of economic theory and/or econometric techniques to the study of economic history. The term cliometrics was originally coined by Jonathan R. T. Hughes and Stanley Reiter in 1960 and refers to Clio, who was the muse of history and heroic poetry in Greek mythology. Cliometricians argue their approach is necessary because the application of theory is crucial in writing solid economic history, while historians generally oppose this view warning against the risk of generating anachronisms.