Symbols show important landmarks, places and areas. They are used because maps are usually too small to contain lots of writing A key is a guide which explains what the symbols on the map mean.
Here’s how it works. The world's oldest known system of writing was influenced by symbols used for trade — engravings found on cylinders used in the exchange of farming produce and textiles ...
The writing system is thought to have originated ... But the origins of proto-cuneiform’s emergence have been murky, and many of its symbols remain undeciphered. Researchers conducting a careful ...