Markup /brabant/5355

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>>5354
>Civilizations fall, they lose the intellect and heart that made them what they were, it happens.
All their cultural legacy was mainly possible thanks to their Indo-European ancestry, which is prevalent in Northern Europeans. Present-day (Northern) Italians are more southern than the Romans, and the Southern aren't even Italian properly. It's notable the neolithic farmers (the genetic basis of southern-europeanness) were less intelligent than the original Aryan tribes of the Ukrainian steppes and the Italians still haven't recovered from consequences of the Imperial period brown immigration.
>The collapse of the Roman Empire was accompanied and accelerated by an influx of Germanic people which settled in Italy and changed its genetic landscape (Antonio et al., 2019). This influx can explain the slow rise in the polygenic scores of Late Antiquity and into the Medieval period, which partly reversed the decline observed in the Imperial Period.
>In a further study, it was reported that the percentage of the population with natural blond hair in the Italian regions was correlated at [0].81 with latitude and [0].74 with IQ. The percentage of blond hair was correlated [0].73 with the haplogroup R1a allele marker of European ancestry  and  -[0].41 with the  haplogroup  E1b1b  allele marker of North African and Middle Eastern ancestry (Lynn, 2012). These results have been extended by Templer, who showed that regional IQs across the Italian regions were correlated positively with cephalic index (relative roundness of the skull) (r=[0].88), multiple sclerosis rate (r=[0].85) and schizophrenia rate (r=[0].46), and negatively  with  prevalence  of  black  hair  and  brown  eyes (r=-[0].73 and -0.61) (Templer, 2012).  In addition,  attempted  murder rate  was associated with lower IQ, lower cephalic index, dark eyes (r=[0].94), and black hair (Templer, 2013).