Some context: Emiliano Zapata Salazar (Spanish pronunciation: [emi'ljano sa'pata]; 8 August 1879 - 10 April 1919) was a leading figure in the Mexican Revolution, the main leader of the peasant revolution in the state of Morelos, and the inspiration of the agrarian movement called Zapatismo. Zapata was born in the rural village of Anenecuilco in Morelos State, where peasant communities were under increasing pressure from the small landowning class who monopolized land and water resources for sugar cane production with the support of dictator Porfirio Diaz. Zapata early on participated in political movements against Diaz and the landowning hacendados, and when the Revolution broke out in 1910 he was positioned as a central leader of the peasant revolt in Morelos. Cooperating with a number of other peasant leaders he formed the Liberation Army of the South of which he soon became the undisputed leader.
Meanwhile, the disintegration of the revolution outside of Morelos put pressure on the Zapatistas. As General Arenas had turned over to the constitutionalists, he had secured peace for his region and he remained in control there. This suggested to many revolutionaries that perhaps the time had come to seek a peaceful conclusion to the struggle. A movement within the Zapatista ranks led by former General Vazquez and Zapata's erstwhile adviser and inspiration Otilio Montano moved against the Tlaltizapan headquarters demanding surrender to the Carrancistas. Reluctantly, Zapata had Montano tried for treason and executed (Womack 1983-86).  Zapata began looking for allies among the northern revolutionaries and the southern Felicistas, followers of the Liberalist Felix Diaz. He sent Gildardo Magana as an envoy to communicate with the Americans and other possible sources of support. In the fall of 1917 a force led by Gonzalez and the ex-Zapatista Sidronio Camacho, who had killed Zapata's brother Eufemio, moved into the eastern part of Morelos taking Cuautla, Zacualpan and Jonacatepec.  Zapata continued his work to try to unite with the national anti-Carrancista movement through the next year, and the constitutionalists did not make further advances. In the winter of 1918 a harsh cold and the onset of the Spanish flu decimated the population of Morelos, causing the loss of a quarter of the total population of the state, almost as many as had been lost to Huerta in 1914. (Womack 311). Furthermore, Zapata began to worry that by the end of the World War, the US would turn its attention to Mexico forcing the Zapatistas to either join the Carrancistas in a national defense or to acquiesce to foreign domination of Mexico. In December 1918 Carrancistas under Gonzalez undertook an offensive campaign taking most of the state of Morelos, and pushing Zapata to retreat. The main Zapatista headquarters were moved to Tochimilco, Puebla, although Tlaltizapan also continued to be under Zapatista control. Through Castro, Carranza issued offers to the main Zapatista generals to join the nationalist cause, with pardon. But apart from Manuel Palafox, who having fallen in disgrace among the Zapatistas had joined the Arenistas, none of the major generals did (Womack 313-14). Zapata emitted statements accusing Carranza of being secretly sympathetic to the Germans (Womack 315). In March Zapata finally emitted an open letter to Carranza urging him for the good of the fatherland to resign his leadership to Vazquez Gomez, by now the rallying point of the anti-constitutionalist movement (Womack 319-20). Having posed this formidable moral challenge to Carranza prior to the upcoming 1920 presidential elections, the Zapatista generals at Tochimilco, Magana and Ayaquica, urged Zapata not to take any risks and to lay low. But Zapata declined, considering that the respect of his troops depended on his active presence at the front (Womack 320-22).
When was he in control of his region?
A: 
Some context: Grace Brewster Murray Hopper (nee Murray; December 9, 1906 - January 1, 1992) was an American computer scientist and United States Navy rear admiral. One of the first programmers of the Harvard Mark I computer, she was a pioneer of computer programming who invented one of the first compiler related tools. She popularized the idea of machine-independent programming languages, which led to the development of COBOL, an early high-level programming language still in use today. Hopper had attempted to enlist in the Navy during World War II, but she was rejected by the military because she was 34 years of age and thus too old to enlist.
Following her retirement from the Navy, she was hired as a senior consultant to Digital Equipment Corporation (DEC). Hopper was initially offered the job position by Rita Yavinsky, but she insisted on applying for the position at DEC, and going through the typical formal interview process. She also sent a letter to Yavinsky's boss explaining that she would be available on alternating Thursdays, receiving a high salary, and have access to an unlimited expense account if she were to be exhibited at their museum of computing as a pioneer. After the proposal from Hopper, she was hired as a full-time senior consultant. As part of her position, she would report to Yavinsky. In this position, Hopper represented the company at industry forums, serving on various industry committees, along with other obligations. She retained that position until her death at age 85 in 1992.  Hopper was a goodwill ambassador in her primary activity in this capacity. She lectured widely about the early days of computing, her career, and on efforts that computer vendors could take to make life easier for their users. She visited most of Digital's engineering facilities, where she generally received a standing ovation at the conclusion of her remarks.  She often recounted that during her service she was frequently asked by admirals and generals why satellite communication would take so long. So during many of her lectures, she illustrated a nanosecond using salvaged obsolete Bell System 25 pair telephone cable, cut it to 11.8  inch (30  cm) lengths, the distance that light travels in one nanosecond, and handed out the individual wires to her listeners. Although no longer a serving officer, she always wore her Navy full dress uniform to these lectures, which is allowed by US Navy uniform regulations.  The most important thing I've accomplished, other than building the compiler, is training young people. They come to me, you know, and say, 'Do you think we can do this?' I say, "Try it." And I back 'em up. They need that. I keep track of them as they get older and I stir 'em up at intervals so they don't forget to take chances.
Did she continue teaching?
A:
She lectured widely about the early days of computing, her career, and on efforts that computer vendors could take to make life easier for their users.