In 1920, urged by Alberto J. Pani, the Mexican ambassador to France, Rivera left France and traveled through Italy studying its art, including Renaissance frescoes. After José Vasconcelos became Minister of Education, Rivera returned to Mexico in 1921 to become involved in the government sponsored Mexican mural program planned by Vasconcelos. The program included such Mexican artists as José Clemente Orozco, David Alfaro Siqueiros, and Rufino Tamayo, and the French artist Jean Charlot. In January 1922, he painted – experimentally in encaustic – his first significant mural Creation in the Bolívar Auditorium of the National Preparatory School in Mexico City while guarding himself with a pistol against right-wing students. thumb|Bodegón español, 1918 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). His murals, subsequently painted in fresco only, dealt with Mexican society and reflected the country's 1910 Revolution. Rivera developed his own native style based on large, simplified figures and bold colors with an Aztec influence clearly present in murals at the Secretariat of Public Education in Mexico City begun in September 1922, intended to consist of one hundred and twenty-four frescoes, and finished in 1928. Rivera's art work, in a fashion similar to the steles of the Maya, tells stories. The mural (In the Arsenal) shows on the right-hand side Tina Modotti holding an ammunition belt and facing Julio Antonio Mella, in a light hat, and Vittorio Vidali behind in a black hat. However, the detail shown does not include the right-hand side described nor any of the three individuals mentioned; instead it shows the left-hand side with Frida Kahlo handing out munitions. Leon Trotsky lived with Rivera and Kahlo for several months while exiled in Mexico.Chasteen, John Charles. Born in Blood and Fire, W. W. Norton & Company, 2006, p. 225. Some of Rivera's most famous murals are featured at the National School of Agriculture (Chapingo Autonomous University of Agriculture) at Chapingo near Texcoco (1925–1927), in the Cortés Palace in Cuernavaca (1929–30), and the National Palace in Mexico City (1929–30, 1935).
In 1920, urged by Alberto J. Pani, the Mexican ambassador to France, Rivera left France and traveled through Italy studying its art, including Renaissance frescoes. After José Vasconcelos became Minister of Education, Rivera returned to Mexico in 1921 to become involved in the government sponsored Mexican mural program planned by Vasconcelos. The program included such Mexican artists as José Clemente Orozco, David Alfaro Siqueiros, and Rufino Tamayo, and the French artist Jean Charlot. In January 1922, he painted – experimentally in encaustic – his first significant mural Creation in the Bolívar Auditorium of the National Preparatory School in Mexico City while guarding himself with a pistol against right-wing students. thumb|Bodegón español, 1918 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). His murals, subsequently painted in fresco only, dealt with Mexican society and reflected the country's 1910 Revolution. Rivera developed his own native style based on large, simplified figures and bold colors with an Aztec influence clearly present in murals at the Secretariat of Public Education in Mexico City begun in September 1922, intended to consist of one hundred and twenty-four frescoes, and finished in 1928. Rivera's art work, in a fashion similar to the steles of the Maya, tells stories. The mural (In the Arsenal) shows on the right-hand side Tina Modotti holding an ammunition belt and facing Julio Antonio Mella, in a light hat, and Vittorio Vidali behind in a black hat. However, the detail shown does not include the right-hand side described nor any of the three individuals mentioned; instead it shows the left-hand side with Frida Kahlo handing out munitions. Leon Trotsky lived with Rivera and Kahlo for several months while exiled in Mexico.Chasteen, John Charles. Born in Blood and Fire, W. W. Norton & Company, 2006, p. 225. Some of Rivera's most famous murals are featured at the National School of Agriculture (Chapingo Autonomous University of Agriculture) at Chapingo near Texcoco (1925–1927), in the Cortés Palace in Cuernavaca (1929–30), and the National Palace in Mexico City (1929–30, 1935).