I understand that the red, yellow and green lines give a general idea of how bad traffic is on a road, but do they have any specific meaning, like red equals a 40-minute wait at a toll bridge? a. According to the Google Maps site, the colored lines representing traffic conditions on major highways refer to the speed at which one can travel on that road.
The oldest form of writing known to man is Cuneiform used in Mesopatamia.
7 Oracle-bone writing ç²éª¨æ (1600 to 1100 BC): The oracle-bone inscriptions are the earliest body of writing we yet possess for East Asia. They were written in a script (Shang-dynasty script) that was ancestral to all subsequent forms of Chinese writing.