Nobrega's first act was one which has exercised the most beneficial influence over the social system of Brazil, namely, the establishment of a college on the then unreclaimed plains of Piratininga.
In the struggle, although he was bitterly accused of violating the written constitution, of arresting and destroying business prosperity and of attempting a radical departure from the accepted social system of the country, he was remarkably successful.
Two barbarous practices had corrupted the social system of the Hindus.
A partial circumcision is practised, which is exceptional with the Melanesians, nor have these usually an elaborate political and social system like that of Fiji.
When a confederacy was organized under a council, intermarriage between tribes sometimes occurred; an artificial kinship thus arose, in which event the council established the rank of the tribes as elder and younger brother, grandfather, father and sons, rendering the relationship and its vocabulary most intricate, but necessary in a social system in which age was the predominant consideration and etiquette most exacting.
When the work of conquest had been achieved, it could not be expected that a radical alteration should be suddenly wrought either in the social system which was in harmony with it, or even in the general ideas which had grown up under its influence.