Problem: Daniel Lee Dierdorf (born June 29, 1949) is a former American football offensive lineman and current sportscaster. A native of Canton, Ohio, Dierdorf played college football for the University of Michigan from 1968 to 1970 and was selected as a consensus first-team All-American in 1970 and a first-team All-Big Ten Conference player in 1969 and 1970. He was inducted into the University of Michigan Athletic Hall of Honor in 1996 and the College Football Hall of Fame in 2000. Dierdorf played professional football in National Football League (NFL) with the St. Louis Cardinals for 13 seasons from 1971 to 1983.

On September 9, 1979, Dierforf sustained torn ligaments in his left knee during an extra point attempt in the second quarter of the second game of the season against the New York Giants. After the game, Dierdorf said, "The knee was completely out of the socket. It moved a couple of inches off to the side. My leg was all twisted around and my foot was pointing in the wrong direction. It was painful. Very painful." Dierdorf was carried off the field on a stretcher, underwent knee surgery, and missed the remainder of the 1979 season.  Dierdorf returned to the Cardinals in 1980, starting all 16 games for the team at right tackle in both the 1980 and 1981 seasons. In 1980, he was selected to play in the Pro Bowl and was selected as a first-team All-NFL player by the NEA. In 1982, Dierdorf moved to center and was the starter at that position for all nine games in a strike-shortened season.  In 1983, Dierdorf returned to his right tackle position and appeared in seven games, only four as a starter. On October 11, 1983, after the Cardinals began the season with a 1-5 record, Dierdorf announced that he would retire at the end of the 1983 season. At the press conference announcing his retirement, Dierdorf said, "This was an easy decision for me to make. . . . Physically, I just can't play the type of game I want to." He added: "Ninety-five percent of me is sad that I'm retiring, but my knees are very, very happy."

what did position did he play?

Answer with quotes: right tackle position

Background: Indigenous peoples of Mexico (Spanish: pueblos indigenas de Mexico), Native Mexicans (Spanish: nativos mexicanos), or Mexican Native Americans (Spanish: nativo america mexicanos), are those who are part of communities that trace their roots back to populations and communities that existed in what is now Mexico prior to the arrival of Europeans. According to the National Commission for the Development of Indigenous Peoples (Comision Nacional para el Desarrollo de los Pueblos Indigenas, or CDI in Spanish) and the INEGI (official census institute), in 2015, 25,694,928 people in Mexico self-identify as being indigenous of many different ethnic groups, which constitute 21.5% of Mexico's population.
Context: According to the National Commission for the Development of the Indigenous Peoples (CDI), there were 25,694,928 indigenous people reported in Mexico in 2015, which constitutes 21.5% of the population of Mexico. This is a significant increase from the 2010 census, in which indigenous Mexicans accounted for 14.9% of the population, and numbered 15,700,000 Most indigenous communities have a degree of financial, political autonomy under the legislation of "usos y costumbres", which allows them to regulate internal issues under customary law.  The indigenous population of Mexico has in recent decades increased both in absolute numbers as-well as a percentage of the population. This is largely due to increased self-identification as indigenous, as-well as indigenous women having higher birth rates as compared to the Mexican average. Indigenous peoples are more likely to live in more rural areas, than the Mexican average, but many do reside in urban or suburban areas, particularly, in the central states of Mexico, Puebla, Tlaxcala, the Federal District and the Yucatan Peninsula.  According to the CDI, the states with the greatest percentage of indigenous population are: Yucatan, with 65.40%, Quintana Roo with 44.44% and Campeche with 44.54% of the population being indigenous, most of them Maya; Oaxaca with 65.73% of the population, the most numerous groups being the Mixtec and Zapotec peoples; Chiapas has 36.15%, the majority being Tzeltal and Tzotzil Maya; Hidalgo with 36.21%, the majority being Otomi; Puebla with 35.28%, and Guerrero with 33.92%, mostly Nahua people and the states of San Luis Potosi and Veracruz both home to a population of 19% indigenous people, mostly from the Totonac, Nahua and Teenek (Huastec) groups.
Question: What is the reason for this increase?
Answer: This is largely due to increased self-identification as indigenous, as-well as indigenous women having higher birth rates as compared to the Mexican average.

Question:
Cronin was born in Cardross, Dunbartonshire, Scotland, the only child of a Protestant mother, Jessie Cronin (nee Montgomerie), and a Catholic father, Patrick Cronin. Cronin often wrote of young men from similarly mixed backgrounds. His paternal grandparents had emigrated from County Armagh, Ireland, and become glass and china merchants in Alexandria. Owen Cronin, his grandfather, had had his surname changed from Cronague in 1870.
In 1930 Cronin was diagnosed with a chronic duodenal ulcer and was told that he must take six months' complete rest in the country on a milk diet. At Dalchenna Farm by Loch Fyne he was finally able to indulge his lifelong desire to write a novel, having previously "written nothing but prescriptions and scientific papers". From Dalchenna Farm he travelled to Dumbarton to research the background of his first novel, using the files of Dumbarton Library, which still has the letter from Cronin requesting advice. He composed Hatter's Castle in the span of three months, and the manuscript was quickly accepted by Gollancz, the only publishing house to which it had been submitted (it was apparently chosen when his wife randomly stuck a pin into a list of publishers). This novel, which was an immediate and sensational success, launched Cronin's career as a prolific author, and he never returned to practising medicine.  Many of Cronin's books were bestsellers in their day and have been translated into many languages. Some of his stories draw on his medical career, dramatically mixing realism, romance and social criticism. Cronin's works examine moral conflicts between the individual and society, as his idealistic heroes pursue justice for the common man. One of his early novels, The Stars Look Down (1935), chronicles transgressions in a mining community in Northeast England and an ambitious miner's rise to be a Member of Parliament.  A prodigiously fast writer, Cronin liked to average 5,000 words a day, meticulously planning the details of his plots in advance. He was known to be tough in business dealings, although in private life he was a person whose "pawky humour ... peppered his conversations," according to one of his editors, Peter Haining.  Cronin also contributed many stories and essays to various international publications. During the Second World War he worked for the British Ministry of Information, writing articles as well as participating in radio broadcasts to foreign countries.
Answer this question using a quote from the text above:

when did he start his writing career?

Answer:
In 1930