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.
View full size image. The caste system in South Asia â which rigidly separates people into high, middle and lower classes â may have been firmly entrenched by about 2,000 years ago, a new genetic analysis suggests.