Osamu OTSUKA, is assistant professor of the Department of Oriental History at the University of Tokyo. He received his Ph.D. in Asian Studies in 2013 from the University of Tokyo. From 2008 to 2010, he engaged in his research on Persian historical manuscripts in Tehran University as a research student. He is majoring in the history of Iran in the Islamic period, and currently focuses on the historiography and the historical recognition in the Ilkhanid and Timurid periods. Especially, he is investigating manuscripts of Rashīd al-Dīn’s Jāmiʻal-Tawārīkh, Abūal-Qāsim Qāshānī’s Zubdat al-Tawārīkh and Ḥamd-Allāh Mustawfī’s Tārīkh-i Guzīda. His articles conclude “A Study on the Geographical Understanding of Ḥamd-Allāh Mustawfī,” in J. Meng & A. Ukai eds., Translation, History and Arts: New Horizons in Asian Interdisciplinary Humanities Research, New Castle upon Tyne: Cambridge Scholars Publishing, 2013, 48-67.