Historia universalis is a sequence of short pieces for improvisation, each piece containing information about various features to be realised. There are 1.000 pieces, one for each year of history, from 1 to 1.000 (hence the title). Each pattern is related to the year to which it is associated and to the facts that happened in that year in the course of history. There are 15 notations, that are associated to the years in relation to the number of facts that the latter features. All the information in each piece is generated in relation to various parameters extracted from the year. The subtitle is a homage to Giorgio Manganelli's collection of novels, Centuria.