 In addition to nearly 23,000 hand-written texts, some of which are more than 1,200 years old, the manuscript archives have more than 18,000 microfilms and hundreds of photocopies.The majority of the microfilms are acquired through mutual agreements with the Bibliothèque Nationale of Paris, the Library of Congress, and the British Library.Databases save researchers up to 70% of the time they would normally spend searching catalogs for information pertaining to manuscripts located elsewhere in the world.