Answer the question at the end by quoting:

The Maya civilization was a Mesoamerican civilization developed by the Maya peoples, and noted for its hieroglyphic script--the only known fully developed writing system of the pre-Columbian Americas--as well as for its art, architecture, mathematics, calendar, and astronomical system. The Maya civilization developed in an area that encompasses southeastern Mexico, all of Guatemala and Belize, and the western portions of Honduras and El Salvador. This region consists of the northern lowlands encompassing the Yucatan Peninsula, and the highlands of the Sierra Madre, running from the Mexican state of Chiapas, across southern Guatemala and onwards into El Salvador, and the southern lowlands of the Pacific littoral plain. The Archaic period, prior to 2000 BC, saw the first developments in agriculture and the earliest villages.
The agents of the Catholic Church wrote detailed accounts of the Maya, in support of their efforts at evangelization, and absorption of the Maya into the Spanish Empire. This was followed by various Spanish priests and colonial officials who left descriptions of ruins they visited in Yucatan and Central America. In 1839, American traveller and writer John Lloyd Stephens set out to visit a number of Maya sites with English architect and draftsman Frederick Catherwood. Their illustrated accounts of the ruins sparked strong popular interest, and brought the Maya to the attention of the world. The later 19th century saw the recording and recovery of ethnohistoric accounts of the Maya, and the first steps in deciphering Maya hieroglyphs.  The final two decades of the 19th century saw the birth of modern scientific archaeology in the Maya region, with the meticulous work of Alfred Maudslay and Teoberto Maler. By the early 20th century, the Peabody Museum was sponsoring excavations at Copan and in the Yucatan Peninsula. In the first two decades of the 20th century, advances were made in deciphering the Maya calendar, and identifying deities, dates, and religious concepts. Since the 1930s, archaeological exploration increased dramatically, with large-scale excavations across the Maya region.  In the 1960s, the distinguished Mayanist J. Eric S. Thompson promoted the ideas that Maya cities were essentially vacant ceremonial centres serving a dispersed population in the forest, and that the Maya civilization was governed by peaceful astronomer-priests. These ideas began to collapse with major advances in the decipherment of the script in the late 20th century, pioneered by Heinrich Berlin, Tatiana Proskouriakoff, and Yuri Knorozov. With breakthroughs in understanding of Maya script since the 1950s, the texts revealed the warlike activities of the Classic Maya kings, and the view of the Maya as peaceful could no longer be supported.

How did people perceive the Maya civilization to be?

In the 1960s, the distinguished Mayanist J. Eric S. Thompson promoted the ideas that Maya cities were essentially vacant ceremonial centres serving a dispersed population

IN: John Kenneth Galbraith  (October 15, 1908 - April 29, 2006), also known as Ken Galbraith, was a Canadian-born economist, public official, and diplomat, and a leading proponent of 20th-century American liberalism. His books on economic topics were bestsellers from the 1950s through the 2000s, during which time Galbraith fulfilled the role of public intellectual. As an economist, he leaned toward post-Keynesian economics from an institutionalist perspective. Galbraith was a long-time Harvard faculty member and stayed with Harvard University for half a century as a professor of economics.

In February 1946, Galbraith took a leave of absence from his magazine work for a senior position in the State Department as director of the Office of Economic Security Policy where he was nominally in charge of economic affairs regarding Germany, Japan, Austria, and South Korea. He was distrusted by the senior diplomats so he was relegated to routine work with few opportunities to make policy. Galbraith favored detente with the Soviet Union, along with Secretary of State James F. Byrnes and General Lucius D. Clay, a military governor of the US Zone in Germany from 1947 to 1949, but they were out of step with the containment policy then being developed by George Kennan and favored by the majority of the US major policymakers. After a disconcerting half-year, Galbraith resigned in September 1946 and went back to his magazine writing on economics issues. Later, he immortalized his frustration with "the ways of Foggy Bottom" in a satirical novel, The Triumph (1968). The postwar period also was memorable for Galbraith because of his work, along with Eleanor Roosevelt and Hubert Humphrey, to establish a progressive policy organization Americans for Democratic Action (ADA) in support of the cause of economic and social justice in 1947.  During his time as an adviser to President John F. Kennedy, Galbraith was appointed United States Ambassador to India from 1961 to 1963. His rapport with President Kennedy was such that he regularly bypassed the State Department and sent his diplomatic cables directly to the president. In India, he became a confidant of Prime Minister Jawaharlal Nehru and extensively advised the Indian government on economic matters. In 1966, when he was no longer ambassador, he told the United States Senate that one of the main causes of the 1965 Kashmir war was American military aid to Pakistan.  While in India, he helped establish one of the first computer science departments, at the Indian Institute of Technology in Kanpur, Uttar Pradesh. Even after leaving office, Galbraith remained a friend and supporter of India. Because of his recommendation, First Lady of the United States Jacqueline Bouvier Kennedy undertook her 1962 diplomatic missions in India and Pakistan.  In autumn 1972 Galbraith was an adviser and assistant to Nixon's rival candidate George McGovern in the election campaign for the American presidency. During this time (September 1972) he travelled in to China in his role as president of the American Economic Association (AEA) at the invitation of Mao Zedong's communist government with the economists Leontief and Tobin and in 1973 published an account of his experiences in A China Passage. Galbraith wrote that there was "no serious doubt that China is devising a highly effective economic system," "[d]issidents are brought firmly into line in China, but, one suspects, with great politeness," "Greater Shanghai ... has a better medical service than New York," and considered it not implausible that Chinese industrial and agricultural output was expanding annually at a rate of 10 to 11%.

What did he do after he worked there?

OUT:
Galbraith resigned in September 1946 and went back to his magazine writing on economics issues.