Pre-print, Working paper: An outline of the evolution from the birth up to present days of the macroeconomics is laid out, its emergence during the thirties, then the period of the domination of the Keynesian macroeconomics of the years 1950 to 1970. The following stage of the evolution has been the attack from Milton Friedman and Robert Lucas against Keynesian macroeconomics. We consider the works of these authors deserve the label of a "scientific revolution à la Kuhn", with the emergence of the dynamic and stochastic macroeconomics. Associated with this, the focus of macroeconomics has shifted. Themes linked to market failures, and especially to unemployment disappear, in favour of cycle and growth analysis, these last being studied from the postulate of efficient working of the system. These last years have seen the emergence of a "New Neoclassical Synthesis" mimicking the old synthesis in combining keynesian and classical elements, while adopting the new methodology of equilibrium discipline and of agents rational behaviour.