«Kyrgyz» is believed to have been derived from the Turkic word for «forty», in reference to the forty clans of Manas, a legendary hero who united forty regional clans against the Uyghurs. The first mention of the Kyrgyz people is contained in the «Historical notes» SIMA Qian in connection with the submission of their [proto]public education Xiongnu (201 BC) In the V to VIII centuries the Kyrgyz were subject to the rourans, the Turkic Khaganate, Uyghur Khaganate.
In Chinese Chronicles have preserved a sufficiently detailed description of the country of Kyrgyz people. The 5th century BC marked the mass migration of the Ephtalites who formed the vast Central Asian state on the whole space. At the time, in the early 9th century AD, the Uyghurs dominated much of Central Asia (including Kyrgyzstan), Mongolia, and parts of Russia and China. In the 9th to 12th centuries, there existed powerful political union Kyrgyz Khanate in the territory of Southern Siberia, upper reaches of the Irtysh River, East Turkistan, which used to be one of the strongest states in the region until the conquest of Mongols headed by Genghis khan.
The Kyrgyz, as emphasized by the academician V. V. Bartold, are one of the ancient Turkic peoples. Since ancient times the Kyrgyz people are part of the ethnonym «Kyrgyz». There were also many groups of Kyrgyz, which became part of the other Nations of Eurasia and gradually assimilated with them.
The 40-ray sun on the flag of Kyrgyzstan is a reference to those same forty tribes and the graphical element in the sun’s center depicts the wooden crown of a yurt – a portable dwelling traditionally used by nomads in the steppes of Central Asia.