WORLD HISTORY

Detailed explanation-1: -The four broad ranks of the caste system in the Indo-Aryan culture, which included Brahmins (priests and scholars), Kshatriyas (kings, governors and warriors), Vaishyas (cattle herders, agriculturists, artisans, and merchants), and Shudras (laborers and service providers).

Detailed explanation-2: -The theory of an immigration of IA speaking Arya ("Aryan invasion") is simply seen as a means of British policy to justify their own intrusion into India and their subsequent colonial rule: in both cases, a “white race” was seen as subduing the local darker colored population.

Detailed explanation-3: -The Aryans were agricultural people who were semi-nomadic. The Aryans migrated to the Indian subcontinent in 1500 BCE. This large community of nomadic cattle herders, coming from central Asia, crossed the Hindu Kush Mountains and came into contact with the Indus Valley Civilization.

Detailed explanation-4: -The Indo-European Aryans migrated from Central Asia to India around 4000 years ago, transforming the weapons, religion, and language of the subcontinent. Some scholars believe they conquered an already weakened Indus Valley Civilization, using superior military technology such as the war chariot.