The writing system in ancient Mesopotamia evolved over several centuries. Initially, taxes in the form of crops were delivered, and the challenge was to determine how much food was stored and whether it would meet community needs until the next harvest. Writing was structured on a grid of horizontal and vertical spatial divisions, and sometimes, the writing got smeared as the scribe's hand moved across the tablet. Around 2800 BCE, scribes turned the pictographs on their sides and began writing in horizontal rows, from left to right and top to bottom, marking a significant evolution in writing techniques.
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This made writing easier, and it made the pictographs less literal. About three hundred years later, writing speed was increased by replacing the sharp-pointed stylus with a triangular-tipped one. This stylus was pushed into the clay instead of being dragged through it.