Arnold J (1 gen 1889 anni – 1 gen 1975 anni)
Descrizione:
 In England shock of the war caused the historian to begin his twelve-volume classic, A Study of History (1934-1961), in which he analyzed the genetics, growth, and disintegration of 26 societies 
Aggiunto al nastro di tempo:
Data:
1 gen 1889 anni
1 gen 1975 anni
 ~ 86 years