18th century is when it began
Explanation:
Under his leadership, the Communist Party took power in mainland China in 1949, making it an authoritarian regime, and thus proclaimed the new People's Republic, following the victory in the chinese Revolution against the forces of the Republic of China. The communist victory led to Chiang Kai-shek and his Kuomintang followers fleeing to Taiwan and made Mao the top leader of China until his death in 1976.
The person in this poster is representing Nazism. Nazism is a set of political beliefs associated with the Nazi Party of Germany. You can see on the poster a swastika, and swastika's are an emblem of the Nazi Party of Germany.
The "Big Three" countries were the United States, Great Britain and Russia. They were called this because they were by far the most important allied players during the war, with Russia and Britain taking on most of the casualties.
