When was Tassili N Ajjer discovered?
Tassili-n-Ajjer, area in southern Algeria where prehistoric rock paintings (and many engravings) were discovered first in 1910 and subsequently in the 1930s and ’60s. A plateau in the central Sahara, the area is characterized by high cliffs, some of which have decorated panels at their base. Where is Tassili Ajjer situated? Tassili n’Ajjer is a…