Complete the following sentence: In the autumn of 1922, Rivera participated in the founding of the Revolutionary Union of Technical Workers, Painters and Sculptors, and later that year he joined the Mexican Communist Party (including its Central Committee). Complete the following sentence: In the autumn of 1922, Rivera participated in the founding of the Revolutionary Union of Technical Workers, Painters and Sculptors, and later that year he joined the Mexican Communist Party (including its Central Committee). •••••••••••••••••••••••••••••••••••••••••••••••••••••••••
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