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http://inventors.about.com/library/inventors/bl_history_of_communication.htmThe Phoenicians develop an alphabet.
The Sumerians develop cuneiform writing - pictographs of accounts written on clay tablets.
The Egyptians develop hieroglyphic writing.
A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.