Today being a day to think about the Austrian divide between leftist cities (“Red Vienna”) and the rightist countryside (“Black Austria”)… This bit’s interesting:

However, Austrian political parties often stand accused of having done little to come to terms with the past. Even at the beginning of the 21st century, Austria’s society bears the clear marks of division into the "red” (socialist) and “black” (conservative) areas of influence that trace back to the time of the First Republic and its civil war. This continues to cause extensive parallelisation even where ideology rarely plays a role, such as in first aid services, automotive organisations and science.^{[citation needed]}

Pillarisation! I did not know that.