A chart from 1872 illustrating instructions for drawing Asia. "General instructions for drawing the continents. Make a scale by marking on a slip of paper or pasteboard the measures 1,2,3, etc., as on the sides of this map. Every measure...

On the eastern slopes of the Masai escarpment bordering the Great Rift Valley are natural rock shelters, overhanging slabs of sedimentary rocks fragmented by rift faults, whose vertical planes have been used for rock paintings for at...

One of the key archeological sites used in determining the sequence of prehistoric occupation on the northwestern Plains. The deposits indicate occupation from 2600 BC to after 1800 AD.