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The indigenous peoples of the Americas are the pre-Columbian peoples of the Americas and their descendants. Although some indigenous peoples of the Americas were traditionally hunter-gatherers--and many, especially in the Amazon basin, still are--many groups practiced aquaculture and agriculture. The impact of their agricultural endowment to the world is a testament to their time and work in reshaping and cultivating the flora indigenous to the Americas. Although some societies depended heavily on agriculture, others practiced a mix of farming, hunting and gathering.
The Pre-Columbian era refers to all period subdivisions in the history and prehistory of the Americas before the appearance of significant European and African influences on the American continents, spanning the time of the original arrival in the Upper Paleolithic to European colonization during the early modern period. While technically referring to the era before Christopher Columbus' voyages of 1492 to 1504, in practice the term usually includes the history of American indigenous cultures until Europeans either conquered or significantly influenced them. "Pre-Columbian" is used especially often in the context of discussing the pre-contact Mesoamerican indigenous societies: Olmec; Toltec; Teotihuacano' Zapotec; Mixtec; Aztec and Maya civilizations; and the complex cultures of the Andes: Inca Empire, Moche culture, Muisca Confederation, and Canari. The Norte Chico civilization (in present-day Peru) is one of the defining six original civilizations of the world, arising independently around the same time as that of Egypt. Many later pre-Columbian civilizations achieved great complexity, with hallmarks that included permanent or urban settlements, agriculture, civic and monumental architecture, and complex societal hierarchies. Some of these civilizations had long faded by the time of the first significant European and African arrivals (ca. late 15th-early 16th centuries), and are known only through oral history and through archaeological investigations. Others were contemporary with the contact and colonization period, and were documented in historical accounts of the time. A few, such as the Mayan, Olmec, Mixtec, and Nahua peoples, had their own written languages and records. However, the European colonists of the time worked to eliminate non-Christian beliefs, and burned many pre-Columbian written records. Only a few documents remained hidden and survived, leaving contemporary historians with glimpses of ancient culture and knowledge. According to both indigenous American and European accounts and documents, American civilizations before and at the time of European encounter had achieved great complexity and many accomplishments. For instance, the Aztecs built one of the largest cities in the world, Tenochtitlan, the ancient site of Mexico City, with an estimated population of 200,000. American civilizations also displayed impressive accomplishments in astronomy and mathematics. The domestication of maize or corn required thousands of years of selective breeding, and continued cultivation of multiple varieties was done with planning and selection, generally by women. Inuit, Yupik, Aleut, and American Indian creation myths tell of a variety of origins of their respective peoples. Some were "always there" or were created by gods or animals, some migrated from a specified compass point, and others came from "across the ocean".
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What is significant about the Pre-Columbian era?

Answer:
refers to all period subdivisions in the history and prehistory of the Americas before the appearance of significant European and African influences on the American continents,

Question:
Dario Gradi MBE (born 8 July 1941) is an Italian-English former amateur football player, coach and manager. He has been associated for more than 30 years with Crewe Alexandra, with whom he is currently the director of football and also director of the Academy. Gradi played as an amateur for clubs in the London area (and won an England amateur cap); he then took on various coaching roles in the region. His first major managerial success was achieved with Wimbledon after which he briefly managed Crystal Palace in 1981.
On 20 April 2007 Gradi announced that with effect from 1 July he would relinquish first team responsibilities, becoming Technical Director while gradually handing over to new first-team coach Steve Holland, with Neil Baker remaining as assistant manager. Gradi was then the longest serving manager of an English football league club. Gradi told the club website: "I didn't want to be a 75-year-old manager working seven days a week, 52 weeks a year. That is not healthy for the future of the club. I will probably drop dead doing the job at some point but I wanted to put that day off a bit. This is a better way to do things, to introduce this gradual transition because it will take some of the workload off me." On 18 November 2008, Gradi resumed control of Crewe's first team on a caretaker basis after a poor start to the 2008/09 season under Steve Holland had left the club bottom of League One. He was in charge for just over a month before Gudjon Thordarson was announced as his successor on Christmas Eve 2008. Gradi remained in charge of the team for two games during the Christmas period, with Thordarson taking over on 29 December. Following the sacking of Thordarson on 2 October 2009, Gradi was again reinstated as caretaker manager which the board of directors then stated would be until further notice. After returning as manager in 2009, on 10 November 2011 it was announced that Gradi had chosen to step down as manager, returning to his position as Director of Football. Gradi's then assistant manager Steve Davis, who had played for Crewe under Gradi from 1983 to 1987, was appointed as manager with immediate effect.
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WHat did he do after he retired?

Answer:
returning to his position as Director of Football.

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Lula Grace Johnson (born March 13, 1929), known professionally as Jan Howard, is an American country music singer and Grand Ole Opry star. She attained popular success as a country female vocalist during the 1960s and early 1970s and was twice nominated for the Best Female Country Vocal Performance Grammy award. Many of her hits were written by her husband at the time, Harlan Howard. Howard's biggest hit and signature song was the 1966 country hit "Evil on Your Mind", which peaked at number five on the Billboard country charts.
In 1959, under the name Jan Howard, she released the single "Yankee Go Home", which failed to hit the country charts. In 1960, the Howards went to Nashville, Tennessee, where they appeared on The Prince Albert Show, the Grand Ole Opry segment carried nationally by NBC Radio. Howard then released her first single under her new record company, Challenge. Titled "The One You Slip Around With", the song was Howard's first significant country hit, hitting the top 15, peaking at number 13 on the Billboard country music chart and earning her several Most Promising Female Vocalist awards (over, among others, another newcomer, Loretta Lynn). Occasional appearances on the Grand Ole Opry led to friendships with several country singers, including Patsy Cline. According to Cline's 1980 biography, Honky Tonk Angel, Cline originally yelled at Howard after a performance on the Opry stage. Howard fought back, and Cline was shocked by her reply. Cline then said to Howard, "Anybody who stands up to Cline is all right, we're gonna be good friends." The two were good friends until Cline's death in 1963. Meanwhile, painfully shy Jan was suffering from the psychological scars of her youth, as well as the anxiety of beginning a new adventure. When her weight dropped below 97 pounds, Harlan hospitalized Jan and she went into therapy. Howard appeared on ABC-TV's Jubilee USA on February 6, 1960, and later that year she won Billboard magazine's Most Promising Female Country Award. In 1962, she charted successfully on the country charts at number 27 with, "I Wish I Was a Single Girl Again". However, none of Howard's follow-up singles was successful.
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How did the single do?

Answer:
the song was Howard's first significant country hit, hitting the top 15, peaking at number 13 on the Billboard country music chart