1930: Installation of the library in the Casa de la Vall (8th September).       1974: Reopening in the Casa de la Vall (Sagrada Família School. 20th December).       1979: Transfer to the CASS building.       1980: Creation of the Andorran Legal Deposit.       1981: Transfer to the Rebés building.       1982: Large floods struck the country and damaged part of the bibliographical holdings.       1986: Transfer to the Prada Casadet building (28th April).       1987: Andorra joins the ISBN system.       1996: Installation in the Casa Bauró. The Andorran fonds is separated from the general fonds.       1998: Beginning of the annual publication of the national bibliography.       1999: Membership in the IFLA