WORLD CIVILIZATION

Detailed explanation-1: -Scholars generally agree that the earliest form of writing appeared almost 5, 500 years ago in Mesopotamia (present-day Iraq). Early pictorial signs were gradually substituted by a complex system of characters representing the sounds of Sumerian (the language of Sumer in Southern Mesopotamia) and other languages.

Detailed explanation-2: -The Sumerian archaic (pre-cuneiform) writing and Egyptian hieroglyphs are generally considered the earliest true writing systems, both emerging out of their ancestral proto-literate symbol systems from 3400 to 3100 BCE, with earliest coherent texts from about 2600 BCE.

Detailed explanation-3: -Trade survived for a while on a limited basis until man learned to write down transactions. It was the recording of business transactions that allowed trade to flourish and rise to the next level. The more people traded, the more writing had to advance to keep up.