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.
The cuneiform system 17 of writing was probably originated by the Sumerians. The oldest inscriptions unearthed to date-over one thousand tablets and fragments from the latter half of the fourth millennium B. C. which were excavated in Erech in very recent years-are in all likelihood written in the Sumerian language.