One of the images posted earlier actually has some interesting commentary
https://sasi.group.shef.ac.uk/maps/nsdivide/ns_line_detail.html
https://sasi.group.shef.ac.uk/maps/nsdivide/ns_line_detail.html
This is the line that separates upland from lowland Britain, the hills from the most fertile farmland, areas invaded by Vikings from those first colonised by Saxons. Numerous facts of life divide the North from the South there is a missing year of life expectancy north of this line. Children south of the line are much more likely to attend Russell group universities for those that do go to University (and they often go to the North to study!), a house price cliff now runs along much of the line, and, on the voting map, the line still often separates red from blue.
In terms of life chances the only line within another European country that is comparable to the North-South divide is that which used to separate East and West Germany. This is found not just in terms of relative differences in wealth either side of the line, but most importantly in terms of health where some of the extremes of Europe are now found within this one divided island of Britain.
