Soyombo symbol arrangement of abstract and geometric symbols and patterns. They are fire, sun, moon, two triangles, two horizontal rectangles, the "Taijitu" (yin and yang) and two vertical rectangles. The elements in the symbol are given the following significance (from top): The Soyombo symbol has appeared on the national Flag of Mongolia since 1911 (except between 1921 and 1924). It served as the Emblem of Mongolia from 1924 to 1940, and was included in the design again in 1992. Mongolian Armed Forces vehicles bear the symbol as a marking. The symbol is seen all over the country, especially on a hillside outside
Yin and yang light; female and male; moon and sun", however, is an exception. Scholars have proposed various explanations for why "yinyang" violates this pattern, including "linguistic convenience" (it is easier to say "yinyang" than "yangyin"), the idea that "proto-Chinese society was matriarchal", or perhaps, since "yinyang" first became prominent during the late Warring States period, this term was "purposely directed at challenging persistent cultural assumptions". Needham discusses Yin and Yang together with Five Elements as part of the School of Naturalists. He says that it would be proper to begin with Yin and Yang before Five Elements because the former: "lay, as