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 Chinese language is the oldest written language in the world with at least six thousand years of history. Chinese character inscriptions have been found in turtle shells dating back to the Shang dynasty1 (1766-1123 BC) proving the written language has existed for more than 3,000 years.