Question: Which president was present for the Mexican Civil War who originated from Oaxaca?

Context paragraphs:
128th Infantry Regiment (United States): The 128th Infantry Regiment ("Les Terribles") is a United States military unit of the Wisconsin National Guard.  The 128th has served as part of the American Civil War, Spanish–American War, Mexican Civil War, World War I, World War II and the Iraq War.

José María Lafragua: José María Ibarra Lafragua was a Mexican liberal lawyer, politician, diplomat, and writer.  He was born in Puebla, 2 April 1813, the son of Lt. Col. José María Lafragua and Mariana de Ibarra and Veytia.  He served in as Minister of Interior in the government of liberal President Ignacio Comonfort.  He was the first director of the National Library of Mexico and key author of the Mexican Civil and Penal Codes.

The Epic of American Civilization: The Epic of American Civilization is a mural by the social realist painter José Clemente Orozco.  It is located in the basement reading room of the Baker Memorial Library on the campus of Dartmouth College in Hanover, New Hampshire.  The mural, painted between 1932 and 1934, consists of a series of 24 fresco panels, whose principal themes are the impact of both indigenous Native Americans and European colonists on North America, and the impact of war (particularly the Mexican Civil War and the First World War) and rapid industrialization on the human spirit.  The mural was designated a National Historic Landmark in 2013.

History of Oaxaca: In the Central Valley region of the Southern Mexican state of Oaxaca archeologists discovered evidence of historic settlements.  Aztecs from Tenochtitlan on the volcanic plateau to the North around what today is Mexico City first arrived in this region around 1250 AD establishing military rule in the 15th century until the arrival of the Spanish.  After the fall of Tenochtitlan, the Spanish took over Oaxaca which led to the eventual decrease of the Native population and the increase in African slaves.  The region was then settled by mostly Spanish immigrants from Europe and the African slaves they brought with them.  Oaxaca was considered a department after the Mexican War of Independence, but after the fall of emperor Agustín de Iturbide, it became a state in 1824 with José Murguia as its first governor.  During the 19th century, Oaxaca was split between liberal and conservative factions.  The political and military struggles between the factions resulted in wars and intrigues.  A series of major disasters occurred in the state from the 1920s to the 1940s.  In the 1940s and 1950s, new infrastructure projects were begun.  From the 1980s to the present, there has been much development of the tourism industry in the state.

The Old Gringo: The Old Gringo (Spanish: "Gringo Viejo" ) is a novel by Carlos Fuentes, written from 1964 to 1984 and first published in 1985.  Fuentes stated: "What started this novel was my admiration for Ambrose Bierce and for his "Tales of Soldiers and Civilians".  I was fascinated with the idea of a man who fought in the United States Civil War and dies in a Mexican civil war."  The novel addresses themes of death, cultural exchange, and Mexican identity, among others.  Its English-language translation became the first novel by a Mexican author to become a U.S. bestseller.  The book was one of three nominees for the Ritz Paris Hemingway Award as best novel of 1985.

Aureliano Blanquet: Aureliano Blanquet (Morelia, Michoacán, 31 December 1849 – 15 April 1919 Barranca de Chavaxtla, Huatusco, Veracruz) was a general of the Federal Army during the Mexican Civil War.  He was a key participant in the coup d'état during the Decena trágica.  Blanquet has been identified "as one of the major villains of the Mexican Revolution".

Mexican Youth Athenaeum: The Mexican Youth Athenaeum, later known as the "Athenaeum of Mexico", was a Mexican civil association founded on October 28, 1909 with the purpose of working in favor of culture and art, by means of organization public meetings and debates.  Born as a response of a generation of young intellectuals who in the decline of the rule of President Porfirio Díaz set a series of criticisms to determinism and mechanism set by the Comtian and Spencerian positivism as the development model of Porfirio Díaz's administration and the group of the "científicos. Through a series of conferences and different cultural efforts they activated a reflexive awareness on education.

Benito Juárez: Benito Pablo Juárez García (] ; 21 March 1806 – 18 July 1872) was a Mexican lawyer and liberal politician of Zapotec origin from Oaxaca.

Agnes Salm-Salm: Agnes Salm-Salm (December 25, 1844 – December 21, 1912) was the American wife of Prince Felix zu Salm-Salm, a Prussian mercenary beside whom she played a role in the American Civil War, the Mexican Civil War between President Benito Juárez and the Austrian archduke Maximilian I of Mexico, and the Franco-Prussian War.

George Puflea: George Puflea Craciun was an early aviator.  Born in modern-day Romania, he flew in the First Balkan War, in the Mexican Revolution, in the First World War and in early American and Mexican civil aviation.  He was also known under his name in Spanish, .

Supporting paragraphs: Agnes Salm-Salm Benito Juárez
Answer: liberal politician of Zapotec origin from Oaxaca.