Donald "Don" Gary Ostrowski[1][2] (born 1945[1]) is an American historian, and a lecturer in history at Harvard Extension School.
[5][6] The Povest’ vremennykh let: An Interlinear Collation and Paradosis (Harvard Ukrainian Research Institute, 2003) under his co-editorship received the Early Slavic Studies Association Award for Distinguished Scholarship.
[3] Together with scholars such as Oleksiy Tolochko and Ludolf Müller [de; ru] (1917–2009), Ostrowski is credited with having reignited interest in textual criticism of the Primary Chronicle around the year 2000.
[3] Serhii Plokhy (2006) said that Ostrowski's monograph Muscovy and the Mongols (1998) 'successfully challenged the myth of the "Tatar yoke" and persuasively identified numerous borrowings of the Muscovite political elite and society from their Qipchaq overlords.
'[11] The book also re-dated all of the literary works of the Kulikovo cycle to after the 1440s, a significant conclusion for dating the translatio of the Rus' land from the Middle Dnieper to Suzdalia.