when did it become people's republic?
On 21 September 1949
China
 On 21 September 1949, Communist Party Chairman Mao Zedong proclaimed the establishment of the People's Republic of China with a speech at the First Plenary Session of the Chinese People's Political Consultative Conference followed by a public proclamation and celebration in Tiananmen Square. 
what is  xixiasaurus? It is a genus of troodontid dinosaur that lived during the Late Cretaceous Period where was it found? Xixia County, Henan Province, in central China. which family of classification did he belong to? troodontid dinosaur when was it discovered? UNANSWERABLE which biological system is it related to? UNANSWERABLE how is palaeobiology related to this? They stated that troodontid anatomy was consistent with a carnivorous lifestyle, and pointed out that the structure of their serrations was not much different from those of other theropods. which is an environment related to this theropods? It is known from the mid-lower part of the Majiacun Formation of China, which dates to the Late Cretaceous period, but there has been disagreement about the exact geological age of the formation. which early dynasty ruled this country? The first dynasty was the Xia, which emerged around 2100.
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China [SEP] People's Republic (1949–present)
Major combat in the Chinese Civil War ended in 1949 with the Communist Party in control of most of mainland China, and the Kuomintang retreating offshore, reducing its territory to only Taiwan, Hainan, and their surrounding islands. On 21 September 1949, Communist Party Chairman Mao Zedong proclaimed the establishment of the People's Republic of China with a speech at the First Plenary Session of the Chinese People's Political Consultative Conference followed by a public proclamation and celebration in Tiananmen Square. In 1950, the People's Liberation Army captured Hainan from the ROC and incorporated Tibet. However, remaining Kuomintang forces continued to wage an insurgency in western China throughout the 1950s.