What is the historical origin of Kazakh yurts?

Xinjiang Kazakh yurts have a long history. Liu Xijun, the princess of Jiangdu who married Wusun Wang, the ancestor of Kazak people, sang in the song Yellow Crane: "The vault is a house, the carpet is a wall, and the meat is cheese ..." This poem describes the felt house. It seems that Kazakh yurts have a history of at least two thousand years.

Felt houses are generally about three meters high, covering an area of twenty or thirty square meters, surrounded by round felt walls and round roofs. The skeleton of the yurt is red willow on the Gobi desert; The outer fence is made of Achnatherum splendens; The walls criss-crossing into diamonds are also made of fine red willow wood; The connecting materials are cowhide rope and beef tendon; Door frames and doors are made of pine. In addition, a lot of felt and wool ropes are needed, and the whole felt room does not need a nail. Kazakhs in pastoral areas have to move more than ten times a year, and they have to live in this kind of felt house all year round except in winter. This kind of felt house not only has the advantages of portability, firmness and portability, but also is easy to disassemble and assemble. It can be "built" in more than two hours, so it is very popular among herders.