The source of the English word Aryan comes from the Sanskrit word ārya, which is the self-designation used by the Vedic Indic people who migrated into the Indian subcontinent around 1500 BCE. The Sanskrit term has a cognate in the Iranian word arya, which is also a self-designation. Both the Sanskrit and the Iranian terms descend from a form ārya that was used by the Indo-Iranian tribes to refer to themselves, a term which is also connected to the source of the country-name Iran, from a phrase meaning Kingdom of the Aryans. The term Aryan has had a history filled with controversy.
ARYAN - A MISUSED TERM
The original meaning of the term is unknown and different meanings have been proposed, the most common being nobleman. During the 19th century CE, it was proposed that this was not only the Indo-Iranian tribal self-designation but also the self-designation used by the ancestors of all Indo-Europeans, which is a theory no longer accepted. Aryan then came to be used as a synonym of Indo-European. Some time later it was further proposed that the ancestors of the Indo-European people had their homeland located in northern Europe, implying that Indo-Europeans were originally of a Nordic racial type. Thus, Aryan developed yet another, purely racial meaning, probably one of the most familiar meanings today.
THE ARYAN MIGRATION
Before the time of the Aryan migration into the Indian subcontinent, there was a highly developed civilization in ancient India known as the Indus Valley Civilization, which was located in what is Pakistan and northwest India today, on the fertile flood plain of the Indus River and its vicinity. The earliest evidence of religious practices in this area dates back approximately to 5500 BCE, farming settlements began around 4000 BCE, and around 3000 BCE there appeared the first signs of urbanization. By 2600 BCE, dozens of towns and cities had been established and between 2500 and 2000 BCE the Indus Valley Civilization was at its peak. The evidence suggests that the Indus Valley Civilization had social conditions comparable to Sumeria and even superior to the contemporary Babylonians and Egyptians.
By 1500 BCE the Aryans migrated into the Indian subcontinent. Coming from central Asia, this large group of nomadic cattle herders crossed the Hindu Kush Mountains and came in contact with the Indus Valley Civilization. This was a large migration and used to be seen as an invasion, which was believed by some scholars to be behind the collapse of the Indus Valley Civilization; this hypothesis is not unanimously accepted today.