© 2014, Universidad de los Andes, Bogota Colombia. All rights reserved. This article is an analysis of the experience of a European medievalist over a period of forty years of teaching, research, and cultural management in biographical code, but also an outline of a future treatise on the theory and methodology of history needed in the 21st century. It is also a reflection on the political and cultural ideas that have transformed the meaning of history in France, Italy and Germany. The author has tried to introduce these same ideas into Spain, his native country, where he has done most of his teaching, despite the mistrust of an academic society educated in a pragmatic version of Marxism or in a positivistic form of conservatism.