 Complete the following phrase:  Juan Manuel de Rosas 30 March 1793  14 March 1877, nicknamed Restorer of the Laws, was an Argentine politician and army officer who ruled Buenos Aires Province and briefly the Argentine Confederation. Although born into a wealthy family, Rosas independently amassed a personal fortune, acquiring large tracts of land in the process. Rosas enlisted his workers in a private militia, as was common for rural proprietors, and took part in the disputes that led to numerous 