The Aryans are the ones who introduced the Caste System.
According to Roselli (2003) among other authors, during adolescence exists an increment in the formation of the dendritic connections as well as a change in the cortex associated with the acquisition of complex cognitive functions. The maturation of the right hemisphere is also related to the shift in the emotional conduct, and the maturation of the left hemisphere is associated with the improvement of the language. The maturation of the prefrontal structures correlates with the development of the cognitive functions.
references
Rosselli, M. (2003). Maduración cerebral y desarrollo cognoscitivo. Revista Latinoamericana de Ciencias Sociales, Niñez y Juventud, 1(1), 125-144.
British<span> colonial leaders ordered their troops to prepare to seize the colonial militias' weapons. </span>
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