The impetus behind the creation of this website was quite simply the difficulty with which this material, as a corpus, was to find in the online catalogs of academic and research libraries. We had not progressed beyond having to look for suelta editions of plays one author at a time. Even Advanced Search capabilities did not solve the problem if the suelta had no date. It was never possible to search by printers or publishers; ornaments were never considered an object of study. Simply put, the only solution was to create a dedicated portal, where the researcher knows that all items listed are Spanish plays (a few in translation), printed before 1833 and which can be studied from a multitude of angles.