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.
This is often considered the oldest form of literature. Before writing was invented, oral stories were commonly put into some sort of poetic form to make them easier to remember and recite. Poetry today is usually written down, but is still sometimes performed.