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.
Cuneiform was a writing system used between roughly 5,300 and 1,950 years ago, so for more than 3,300 years. That makes it the longest-lasting writing system in known history-longer than the Chinese writing system, which has existed for about 3,200 years.