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When was the Inner Mongolia Autonomous Region founded?

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Wide autumn valley with golden grass in the foreground and low, tree-covered mountains of the Greater Khingan Range in the distance under a clear sky. — Inner Mongolia Da Hinggan (Greater Khingan) Range, southeast of Hailar, Inner Mongolia Autonomous Region, China.

The Inner Mongolia Autonomous Region was founded by the Chinese communist regime in 1947. This occurred more than two years before the establishment of the national government in Beijing in 1949.1