Question: David was born on 28 January 1858, in St. Fagans near Cardiff, Wales, the eldest son of the Rev. William David, a fellow of Jesus College, Oxford, a classical scholar and naturalist and his wife Margaret Harriette (nee Thomson). His mother's cousin, William A. E. Ussher of the Geological Survey, first interested David in what was to be his life work. At the age of 12, David went to Magdalen College School, Oxford in 1870. In 1876 he gained a classical scholarship to New College, Oxford.

When World War I broke out in 1914, David was a strenuous supporter of the war effort, supporting the campaign for conscription. In August 1915, after reading reports about mining operations and tunnelling during the Gallipoli Campaign, along with Professor Ernest Skeats, a professor at the University of Melbourne, David wrote a proposal to Senator George Pearce, the Australian Defence Minister, suggesting that the government raise a military force to undertake mining and tunnelling. After the proposal was accepted, David used his advocacy and organisational abilities to set up the Australian Mining Corps, and on 25 October 1915 he was appointed as a major, at the age of 57.  The first contingent of the corps consisted of 1,300 officers and men that were initially organised into two battalions before being reorganised into three tunnelling companies, as well as an electrical and mechanical mining company. After departing Australia for the United Kingdom in February 1916, the corps arrived on the Western Front in May 1916. Given the title 'Geological Adviser to the Controllers of Mines in the First, Second and Third Armies', David became relatively independent and spent his time in geological investigations, using his expertise to advise on the construction of dugouts, trenches, and tunnels, the siting of wells for provision of pure drinking water from underground supplies, giving lectures, and producing maps. In September 1916 he fell to the bottom of a well he was examining, breaking two ribs and rupturing his urethra. He was invalided to London but returned to the Front in November, assuming the role of geological technical advisor to the British Expeditionary Force.  On 7 June 1917 his wartime contribution culminated in the mining of German positions in the Battle of Messines. In January 1918, David was awarded the Distinguished Service Order and in November he was promoted to lieutenant colonel. The war having concluded, he was demobilised in 1919. He was also Mentioned in Despatches twice.

Using a quote from the above article, answer the following question: When did he leave this position?
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Answer: The war having concluded, he was demobilised in 1919.

Problem: Rogers Clark Ballard Morton (September 19, 1914 - April 19, 1979) was an American politician who served as the U.S. Secretary of the Interior and Secretary of Commerce during the administrations of Presidents Richard M. Nixon and Gerald R. Ford, Jr., respectively. He also served as a member of the U.S. House of Representatives from Maryland. Though he was born in Louisville, Kentucky, Morton moved to a farm on the Eastern Shore of Maryland in the early 1950s. In 1962, he was elected to the House of Representatives, in which capacity he established an environmental record.

Morton continued to serve in the House and as chairman of the RNC until 1971, when he was nominated to be Secretary of the Interior by President Nixon. He was unanimously confirmed by the United States Senate Subcommittee on the Interior, though some concerns regarding Morton's record of environmental protection were raised by Phillip Berry, then-President of the Sierra Club. Morton's predecessor, Walter Joseph Hickel, had been chosen over Morton to fill the job in 1969, but was fired by Nixon in late 1970 for criticizing White House policy. Morton was the only person from the east coast to serve as Interior Secretary in the 20th century.  Upon assuming the office of Secretary of the Interior, Morton promised he would seek to "purify the environment". However, as his tenure progressed, he was gradually isolated from the proceedings of the White House and lost several major divisions to other departments. During the 1973 oil crisis, for example, the oil and natural gas divisions of the department were transferred to the Office of Emergency Preparedness. Furthermore, though Morton was the one who announced the construction of the Trans-Alaska Pipeline System, speculation was put forward that he did not play a major role in determining its route. On August 1, 1974, Morton approved Anza-Borrego State Park for inclusion in the national registry of natural landmarks.  As he was leaving his post in 1975, further criticism was directed at Morton for his overseeing the partial dismantling of the Interior Department. He was also criticized for lacking the vigor necessary to serve as head of a cabinet department, and for failing to see through the proposed creation of a new, stronger cabinet department that would have replaced the Interior.

what was his greatest accomplishment?

Answer with quotes:
Morton was the one who announced the construction of the Trans-Alaska Pipeline System,