Early writing
In Mesopotamia, simple picture-symbols gradually evolved into 'wedge-shaped' marks. The Egyptians based their writing, called 'hieroglyphics' on drawing.

Does all writing run from left to right?
Different writing systems developed around the world, and there were no common rules about the direction in which words or symbols should run. In traditional Chinese, the words are set out in columns rather than lines. this is probably because the earliest Chinese writing was done on strips of bamboo, which were arranged top to bottom. The Western custom of writing from left to right down the page became fixed by the ancient Greeks only around 1000 BC. Arabic script runs from right to left, so Arab newspaper readers begin on what would be the back page of a Western paper.