A recent research study based on didactic-methodological scope has analysed the image of Islam in the history curriculum textbooks in Slovakia (from 1993 until the very recent publications). The introductory part examines both the initial questions and methods of the respective research. Firstly, I attempt to introduce the current definition of history textbook, and, at the same time, both its desired qualitative as well as quantitative content. Furthermore, the curriculum concerning Islam in both the elementary and high school history textbooks has been scrutinized. Moreover, as a conclusion, the paper suggests re-examination of some of the historical terms and events, such as Jihad, Battle of Poitiers and Crusades, which have been incorrectly interpreted.