Old Russian Chronicles (Russian: Древнерусские летописи Ukrainian: Давньоруські літописи) or Old Russian Letopisi are type of written sources in Old Rus', main type of Old Russian historical literature, composed from 11th to 18th centuries. Chronicles are among the most extensive monuments of Old Russian literature and one of the leading genres of it. Chronicles were main form of Russian historical narrative until the middle of the 16th century, the time of Ivan the Terrible, when they gave primacy to another historiographical genre — chronographs.