I started reading Fundamentals of Political Economy from Shanghai People's Press and saw a quote in the introduction that reminded me of something I see posted here a lot:
The experience of China in raising her national savings-investment ratio by taking advantage of the situation created when
revolution forced the traditional claimants on the nation’s economic surplus to relinquish their claims is perhaps the most
significant in world history. [^Source]
Does this ring a bell?
the maoist uprising against the landlords was the largest and most comprehensive proletarian revolution in history, and led to almost totally-equal redistribution of land among the peasantry
[^Source]: Victor D. Lippit, Land Reform and Economic Development in China: A Study of Institutional Change and Development
Finance, White Plains, N.Y., M. E. Sharpe, Inc. (International Arts and Sciences Press), 1975, p. x.
Charitably, they put "51st state" in quotes because they realize Russia at least doesn't have 50 equivalent analogues to states and are just using it as a shorthand for Russia taking control of the US and adding it to the Russian Federation as an oblast or something.