Green neckties: The psychology of wearing green. Following the color blue, green is menâs second most favorite color. In formal menâs attire darker shades of green and olive are seen in suits. Green dress shirts are rare, and are often a light pastel-tone green. Neckties come in almost any green shade available.
According to one long-held theory about the origins of South Asia's caste system, Aryans from central Asia invaded South Asia and introduced the caste system as a means of controlling the local populations. The Aryans defined key roles in society, then assigned groups of people to them.
Thus, it has been impossible to determine the exact origins of the caste system in South Asia. In the midst of the debate, only one thing is certain: South Asia's caste system has been around for several millennia and, until the second half of the 20th century, has changed very little during all of that time.