The Universal Bibliographic Repertoire, property of the State, was entrusted to the State.

This is an extensive virtual library on men, masculinities, gender, and sexualities.

The Universal Bibliographic Repertory was presented at the Paris world fair where it received a prize.

In June 2013, the Universal Bibliographic Repertory of the Mundaneum was officially registered in the Unesco Registry "Memory of the World".

The first complete edition of the Universal Decimal Classification was published in the Manuel du Répertoire bibliographique universel.

From 2013, the Universal Bibliographic Repertory is among the documents and documentary collections of the Unesco Memory of the World Registry.

The IIB’s first mission was to establish the Universal Bibliographic Repertory, which was intended to bring together the bibliographical details of every publication in the world.

By inventing Universal Decimal Classification and the Universal Bibliographical Repertory, Paul Otlet and Henri La Fontaine developed an ingenious system to gather together all the knowledge of the world.

With Henri La Fontaine, he founded the Office International de Bibliographie and set up a Universal Bibliographic Repertory (UBR), which brought together all the works published around the world on any subject.