Also in 1906, Iorga traveled into the Ottoman Empire, visiting Istanbul, and published another set of volumes—"Contribuții la istoria literară" ("Contributions to Literary History"), "Neamul românesc în Ardeal și Țara Ungurească" ("The Romanian Nation in Transylvania and the Hungarian Land"), "Negoțul și meșteșugurile în trecutul românesc" ("Trade and Crafts of the Romanian Past") etc. In 1907, he began issuing a second periodical, the cultural magazine "Floarea Darurilor", and published with Editura Minerva an early installment of his companion to Romanian literature (second volume 1908, third volume 1909). His published scientific contributions for that year include, among others, an English-language study on the Byzantine Empire. At home, he and pupil Vasile Pârvan were involved in a conflict with fellow historian Orest Tafrali, officially over archeological theory, but also because of a regional conflict in academia: Bucharest and Transylvania against Tafrali's Iași.