西藏地区自古就有人类活动 ,新石器时代的氏族主要是土著族及迁入的古越、华夏、羌、东夷人等。三代至春秋战国时期 ,经民族融合 ,西藏地区主要的民族是以发羌为主的诸羌族 (其他族也都融合到了羌族 )。他们不仅和周围地区有经济、文化、宗教交往 ,而且从古至战国末 ,也与中原地区有着紧密的联系和内在的文化关系 ,充分说明西藏自治区自古就是中国的一部分。各族人民的经济、文化虽然赶不上中原地区 ,但他们在极为艰苦的环境下顽强生存和劳动 ,对先秦时期的灿烂文化作出的贡献也是应当充分肯定的。同时 ,他们也为秦汉时期社会的发展奠定了基础 There are human activities in Tibet since ancient times. The Neolithic clans mainly consisted of indigenous peoples and the ancient Yue, Huaxia, Qiang and Dongyi people who moved in. From the third generation to the Spring and Autumn and the Warring States Period, ethnic integration led to the predominate ethnic groups in Qam ethnicity in the region (the other ethnic groups were also integrated into the Qiang ethnic group). They not only have economic, cultural and religious contacts with the surrounding areas, but also have close ties with and cultural ties with the Central Plains region since ancient times to the end of the Warring States Period. They fully demonstrate that the Tibet Autonomous Region has been a part of China since ancient times. Although the economy and culture of people of all ethnic groups can not keep up with the Central Plains, their dedication and hard work in extremely difficult circumstances should also be fully affirmed in their contributions to the splendid culture of the pre-Qin period. At the same time, they also laid the foundation for the social development in the Qin and Han Dynasties