Answer:
Between 1920 and until the early 1940s, the only communist country was the Soviet Union, where the first communist revolution, led by Vladimir Lenin, was successful in 1917.
From the early 1940s onward, communism began to expand rapidly to many areas in the world. For example, after the end of World War II, the Soviet Union expanded communism in Eastern European Countries like Poland, Hungary, and Romania, where it installed puppet governments.
In 1949, another important country became comunist: China. Led by Mao Zedong, the Chinese communists won the civil war against the Chinese nationalists (the Kuomintang, who later fled to Taiwan). In the same year, the Chinese People's Republic was proclaimed.
Floridian cities are not considered city-states, because we are all united under one government-- the governor of Florida. City- states are not unoted, and each have separate rulers<span />
1.3 million served, 50,000 died
The right answer is the increase of agricultural output, the Ming dinasty ruled China for almost 300 years (1368-1644) and enjoyed stability and prosperity, reforming the government and making more efficient use of the land, one of the things that made this increase possible was taxes, what excludes the third option. As for the first option, Ming government persecuted to some extent Christian and Muslims communities, and for the fourth, Tokugawa was a dinastic government in Japan, not China.
