Even in more recent times, redheads were considered behavioural outliers – more temperamental and libidinous than ‘normal-haired’ people. A 19th-century survey ‘proved’ that 48% of so-called ‘criminal women’ (i.e. prostitutes) had red hair, to name but one now discredited example.
‘The geographic distribution of redheads across Europe is equally puzzling, as this map demonstrates. There are two ginger hotspots: the Celtic fringe of the British Isles (i.e. Scotland, Ireland and Wales), and an area deep inside Russia, somewhere between Yaroslavl and Kirov’
Are they going extinct? Probably not.
See Also: That Sherlock Holmes case involving ‘The Red-Headed League.’