 Notable authors include Hafiz, Amir Khusro, Auhadi of Maragheh, Alisher Navoi, Obeid e zakani, Khaqani Shirvani, Anvari, Farid al-Din Attar, Omar Khayyam, and Rudaki.The "ghazal" was introduced to European poetry in the early 19th century by the Germans Schlegel, Von Hammer-Purgstall, and Goethe, who called Hafiz his "twin".Lyric in European literature of the medieval or Renaissance period means a poem written so that it could be set to music—whether or not it actually was.