A cluster of cairns near Wajir are generally ascribed by the local inhabitants to the Maadiinle, a semi-legendary people of high stature, who are associated with the Somali. A. T. Curle (1933) reported the excavation of two of these large tumuli, finding traces of skeletal remains which crumbled at his touch, as well as earthenware shards and a copper ring.[2]
Wajir was attacked by Italian forces in World War II.
Wajir was the site of the Wagalla massacre in 1984. The Kenyan army rounded up as many as 5,000 Somali men of the Degodia clan from their homes on the morning of 10 February. Although the ostensible purpose was to defuse clan fighting, the army held the Degodia captives at an airstrip for five days without water and food, before executing them.