Borena Zone, one of the 17 zones of the Oromia Region of Ethiopia
The Borana calendar consist of 29.5 days and 12 months for a total 354 days in a year.
They are closely associated with other Oromo, especially their non-nomadic neighbors, the Borana.
As of 1990, gadaa had active adherents only among the Borana and Guji groups near the Ethiopian-Kenyan border.
The Ethiopian monk Bahrey most important chronicler of the Oromo hikes called the Macha and Tulama as subgroups of the Borana and mentions various clans and lineages of Macha.
The Moyale clashes were a series of ethnic clashes between Borana and Gabra communities in July 2012 in the area of Moyale, Ethiopia, on the border with Kenya.