The change occured in two major aspects
The first is about who would and how to make the decision in the top level of the governing board. When Mao was ruling, the democracy was virtually dead and Mao dictated everything. No one can oppose him and everyone was happy to follow what Mao said. After Mao, and post-Mao era (as in Deng xiao ping, Jiangzemin ruling period) this problem began to phase out, till now Wen and Hu, the president and premier have no absolute right to make every decision, they have to make compromise and take different sound and opinion into consideration.
The second is about the goal and role of government. In Mao, the major role of government is to remove and wipe out the enemies from home or broad. it is partly because the generous global climate of cold war, and partly because the complex conflict between Russia and USA, People's republic of China and Republic of China (TW). But now, the role of government is switched sharply to improve the economy and people's wellbeing.
And it should be noted that Communism was taken serious in Mao's time, it was almost every Chinese people's Final Fantasy, but to date communism is just a name or concept, which is used to show that Chinese political system is different from western political regime, and they attempt to develop their own way to construct the nation.
Stalin's political party was initially the Bolshevik Party. In March 1918, it changed its name to the Communist Party.
The Bolsheviks changed their identity BEFORE the Russian Civil War ended and became known as the Communist Party very shortly after the October Revolution at their Seventh Party Congress in March 1918. The reason was that the Bolsheviks were now in power and they weren't going to let any other political party exist (even though several of them aspired to create a Communist society,) so they might as well call themselves the Communist Party
NO
Prince Shotku changed Japan's political system by bringing in new Chinese ideals and beliefs (such as Confucianism) that changed old Japanese ones.
Officially from 1917-1991. However questions have been raised over how much the Russian political system has changed since they officially abandoned communism, as many of the politicians who were in parliament during the communist period of the countries history remained after 1991. Putin himself was part of the KGB (in which to join you had to be proven to be an extreme communist).
She was Romanian originally but changed her nationality to American after defecting from the Communist regime in Romania.
He continued the democracy introduced by his mentor Ephialtes after he was assassinated, and further developed it into a radical democracy where the citizens directly controlled the political and legal system.In realm of political reforms, Pericles profoundly deepened the democratic character of Athenian constitution.
Trial by combat was introduced and taxes are introduced for the first time
It became a communist but united country,
Laws are changed or introduced by the government departments of the country concerned.
After wars, political boundaries are often changed
Communist. It used to be Capitalist, but Obama changed all that.