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 oldest remains of Ancient Irish that we have are inscriptions on Ogham stones from the 5th and 6th centuries. Old Irish was first written in the Roman alphabet before the beginning of the 7th century which makes Irish the oldest written vernacular language north of the Alps.