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
Taijitu the 16th century. The original description of a "taijitu" is due to Song era philosopher Zhou Dunyi (1017–1073), author of the "Taijitu shuo" "Explanation of the Diagram of the Supreme Ultimate", which became the cornerstone of Neo-Confucianist cosmology. His brief text synthesized aspects of Chinese Buddhism and Taoism with metaphysical discussions in the "Yijing". Zhou's key terms Wuji and Taiji appear in the opening line , which Adler notes could also be translated "The Supreme Polarity that is Non-Polar". Non-polar ("wuji") and yet Supreme Polarity ("taiji")! The Supreme Polarity in activity generates "yang"; yet at the limit of activity it