Politics is essentially about how to govern and run a stable civilization. What is deemed "civil" is not directly associated with "civilization." I would say the modern term is more or less surrounded by the idea of more concrete structures rather than merely abstract ones (this would be why writing is most commonly associated with more 'advanced' civilizations.)
https://www.etymonline.com/word/civilization
In archeology we generally tend to refer to "civilization" as being social cooperation on a large scale that involves a movement away from hunter gather life styles in order to free up human time and create societal structures.
What is generally deemed as the most apparent culmination of civilization is a the invention of writing and the formation of "written" law.
Spengler's view of the interaction between his terms of "culture" and "civilization" I find to be useful.