Jennings started the project thinking that the Wari culture of 600 to 1000 CE
was an empire, and he expected to uncover evidence that the Wari were conquerers.
The only such discovery tale given credence is the story of Leif Ericsson, an Icelander who sailed southwest and discovered "Vinland" about 1000 CE
, according to sagas written down in Iceland at that time.
This dictionary covers the medieval period of India, defined as the period from the renewed Islamic advance into north India from roughly 1000 CE
to the establishment of the Mughal empire in 1526.
Frye's professional areas of interest have been Persian philology--the study of literary texts and languages--and the history of Iran and Central Asia before 1000 CE