[11] During the reign of Emperor Baeda Maryam I in the late fifteenth century, the Doba bordering Angot are recorded to have disrupted crucial roads used for Abyssinian trade.
[15] Later in the seventeenth century the induction of upland Doba and Harla peoples into Afar identity led to the emergence of the Aussa Sultanate.
[16] During the reign of Emperor Iyasu II in the 1700s, Doba warriors attacked the Abyssinian frontier.
[17] In 1809, British explorer Henry Salt who had visited Doba declared that it was an extensive uncultivated plain and had stated that the inhabitants were a tribe which were an isolated group of "negroes" who were considered as a formidable set of marauders but had been experiencing difficulties maintaining independence.
[18] Contemporary archaeologists discovered several ruins in the Chercher area called Doba (modern eastern Oromia) consisting of the districts Kubi, Addas, Mito, Djugola and Abadir dating back to the eighth century, and are linked to the Harla people.