The communist victory in China marks a significant chapter in the modern history of the country.
The communists were lead by Mao while the nationalists were led by Chiang Kai-shek.
The 4 reasons due to which the communists won are:
1. Chiang's policies of oppression and violence did not help him get widespread support
2. Chiang was supported by the Americans, but the support eventually weakened
3. The message of the communists resonated with the poor farmers and the peasant class, which Chiang failed to engaged.
4. Mao was able to get some form of support, albeit limited, from the Soviet Union
There are many ways in which you can rewrite this sentence in order to make it correct, but the bottom line is that the verb began is incorrect here.
So, here are some examples:
<span>The Boston Massacre and the repeal of taxes under the Townshend Acts resulted in/led to/provoked/gave rise to huge protests across the colonies. </span>