Plovdiv printing-press. The city's traditions as a literary centre are preserved by the first public library in Bulgaria, the Ivan Vazov National Library, the 19 "chitalishta" (cultural centres), and by numerous booksellers and publishers. The library was founded in 1879 and named after the famous Bulgarian writer and poet Ivan Vazov who worked in Plovdiv for five years creating some of his best works. Today the Ivan Vazov National Library is the second largest national library institution with more than 1.5 million books, owning rare Bulgarian and European publications. The city has traditions in iconography since the Middle Ages. During the
Plovdiv in Silistra Eyalet between 1593 and 1826, the sanjak centre in Eyalet of Adrianople between 1826 and1867 and the sanjak centre of Edirne Vilayet between 1867 and 1878. During that period Plovdiv was a major economic center along with Constantinople, Edirne, and Thessaloniki. The richer citizens constructed beautiful houses many of which can still be seen in the Architectural reserve Old Plovdiv. Under the rule of the Ottoman Empire, Filibe (as the city was known at that time) was a focal point for the Bulgarian national movement and survived as one of the major cultural centers for Bulgarian culture and