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.
A Buddhist holy text, the Diamond SÅ«tra is considered to be the oldest surviving dated printed book in the world. Found in a walled up cave in China along with other printed materials, the book is made up of Chinese characters printed on a scroll of grey printed paper, wrapped along a wooden pole.