paragraph_text: The relational model also allowed the content of the database to evolve without constant rewriting of links and pointers. The relational part comes from entities referencing other entities in what is known as one-to-many relationship, like a traditional hierarchical model, and many-to-many relationship, like a navigational (network) model. Thus, a relational model can express both hierarchical and navigational models, as well as its native tabular model, allowing for pure or combined modeling in terms of these three models, as the application requires.

paragraph_text: A class reunion is a meeting of former classmates, often organized at or near their former school or college by one or more class members. It is scheduled near an anniversary of their graduation, e.g. every 5 years. Their teachers and administrators may be invited. Those attending reminisce about their student days and bring each other up to date on what has happened since they last meet.

paragraph_text: In 2011 Euvin Naidoo was selected by Forbes onto their Top 10 most Powerful and Influential Men under Forty in Africa list. He is currently a banking executive in Johannesburg, South Africa. A graduate of the Harvard Business School (HBS), Euvin Naidoo is also an alumnus of global international management consulting firm McKinsey & Co., having started his career at the Firm in the 1990s with a focus on growth strategies, turnarounds and engagements in Africa within financial services (banking/insurance), telecommunications (fixed and mobile), metals & mining (steel and coal) and airlines/transport (operational efficiency, marketing and new sales channels).

paragraph_text: Thorn Kief Hillsbery is an American novelist. He is the author of "War Boy" and "What We Do Is Secret", which was nominated for a Lambda Literary Award. He was born in Portland, Oregon, and attended Evergreen State College. He currently lives in Manhattan, and teaches a creative writing workshop at Columbia University.

paragraph_text: Lipman was born in Friedrichstadt (now Jaunjelgava in Latvia) on November 18, 1874. Attending school in Moscow, he later attended the gymnasium in Orenburg. He and his family immigrated to the United States in 1888, quickly settling on a farm in Woodbine, New Jersey, where he learned about agriculture. In 1894, he enrolled into Rutgers College to study agricultural science and its founding principles, coming under the influence of E. V. Voorhees. He later attended Cornell University to study advanced chemistry and bacteriology. Lipman was appointed to the Rutgers New Jersey Agricultural Experiment Station in charge of its Department of Soil Chemistry and Bacteriology. Soon afterward, he became an instructor, then professor, of agricultural chemistry at nearby Rutgers College.

paragraph_text: In 1949, the Territory and the Territory of New Guinea were established in an administrative union by the name of the Territory of Papua and New Guinea. That administrative union was renamed as Papua New Guinea in 1971. Notwithstanding that it was part of an administrative union, the Territory of Papua at all times retained a distinct legal status and identity; it was a Possession of the Crown whereas the Territory of New Guinea was initially a League of Nations mandate territory and subsequently a United Nations trust territory. This important legal and political distinction remained until the advent of the Independent State of Papua New Guinea in 1975.

paragraph_text: Biysky District () is an administrative and municipal district (raion), one of the fifty-nine in Altai Krai, Russia. It is located in the east of the krai and borders with Zonalny, Tselinny, Soltonsky, Krasnogorsky, Sovetsky, and Smolensky Districts, as well as with the territory of the City of Biysk. The area of the district is . Its administrative center is the city of Biysk (which is not administratively a part of the district). District's population:

paragraph_text: The first geographical entity that was called Armenia by neighboring peoples (such as by Hecataeus of Miletus and on the Achaemenid Behistun Inscription) was established in the late 6th century BC under the Orontid dynasty within the Achaemenid Persian Empire as part of the latters' territories, and which later became a kingdom. At its zenith (95–65 BC), the state extended from the Caucasus all the way to what is now central Turkey, Lebanon, and northern Iran. The imperial reign of Tigranes the Great is thus the span of time during which Armenia itself conquered areas populated by other peoples.

paragraph_text: Millican is a town in Brazos County, Texas, United States. The population was 240 at the 2010 census, up from 108 at the 2000 census. It is part of the Bryan–College Station metropolitan area. Millican is named after Robert Millican, the first white settler of the region that would come to be known as Brazos County.

paragraph_text: The Fair Play Men were illegal settlers (squatters) who established their own system of self-rule from 1773 to 1785 in the West Branch Susquehanna River valley of Pennsylvania in what is now the United States. Because they settled in territory claimed by Native Americans, they had no recourse to the Pennsylvania colonial government. Accordingly they established what was known as the Fair Play System, with three elected commissioners who ruled on land claims and other issues for the group. In a remarkable coincidence, the Fair Play Men made their own declaration of independence from Britain on July 4, 1776 beneath the "Tiadaghton Elm" on the banks of Pine Creek.

paragraph_text: The Biblioteca Ayacucho ("Ayacucho Library") is an editorial entity of the government of Venezuela, founded on September 10, 1974. It is managed by the "Fundación Biblioteca Ayacucho". Its name, "Ayacucho", comes from the intention to honor the definitive and crucial Battle of Ayacucho that took place December 9, 1824 between Spain and the territories of the Americas, prior to the full independence of the continent.

paragraph_text: The Republic of Užice ( / ) was a short-lived liberated Yugoslav territory and the first liberated territory in World War II Europe, organized as a military mini-state that existed in the autumn of 1941 in occupied Yugoslavia, more specifically the western part of the Territory of the Military Commander in Serbia. The Republic was established by the Partisan resistance movement and its administrative center was in the town of Užice.

paragraph_text: The movement to create a territory within the present boundaries of Colorado followed nearly immediately. Citizens of Denver and Golden pushed for territorial status of the newly settled region within a year of the founding of the towns. The movement was promoted by William Byers, publisher of the Rocky Mountain News, and by Larimer, who aspired to be the first territorial governor. In 1859, settlers established the Territory of Jefferson, and held elections, but the United States Congress did not recognize the territory, and it never gained legal status.

paragraph_text: Henry Thacker attended Boys' High School and then Canterbury College (what is now known as the University of Canterbury), from where he graduated with a Bachelor of Arts. He then enrolled at Edinburgh University where he gained his M.B. and C.M. diplomas in 1895. Two years later he gained a fellowship in the Royal College of Surgeons in Dublin.

paragraph_text: Eastern Bengal and Assam was an administrative subdivision (province) of the British Raj between 1905 and 1912. Headquartered in the city of Dacca, it covered territories in what are now Bangladesh, Northeast India and Northern West Bengal.

paragraph_text: The Centre Daily Times is a daily newspaper located in State College, Pennsylvania in the United States. It is the hometown newspaper for State College and the Pennsylvania State University, one of the best-known and largest universities in the country, with more than 45,000 students attending the main campus.

paragraph_text: Bogotá (/ ˈboʊɡətɑː /, / ˌbɒɡəˈtɑː /, / ˌboʊ - /; Spanish pronunciation: (boɣoˈta) (listen)), officially Bogotá, Distrito Capital, abbreviated Bogotá, D.C., and formerly known as Santafé de Bogotá between 1991 and 2000, is the capital and largest city of Colombia, administered as the Capital District, although often thought of as part of Cundinamarca. Bogotá is a territorial entity of the first order, with the same administrative status as the departments of Colombia. It is the political, economic, administrative, industrial, artistic, cultural, and sports center of the country.

paragraph_text: Massachusetts was first colonized by principally English Europeans in the early 17th century, and became the Commonwealth of Massachusetts in the 18th century. Prior to English colonization of the area, it was inhabited by a variety of mainly Algonquian language indigenous tribes. The first permanent English settlement in New England came in 1620 with the founding of Plymouth Colony by the Pilgrims who sailed on the Mayflower. It set precedents but never grew large. A large - scale Puritan migration began in 1630 with the establishment of the Massachusetts Bay Colony, and spawned the settlement of other New England colonies. Friction with the natives erupted in the high - casualty King Philip's War in the 1670s. Puritanism was the established religion and was strictly enforced; dissenters were exiled. The Colony clashed with Anglican opponents in England over its religious intolerance and the status of its charter. Most people were farmers. Businessmen established wide - ranging trade links, sending ships to the West Indies and Europe, and sometimes shipping goods in violation of the Navigation Acts. These political and trade issues led to the revocation of the Massachusetts charter in 1684.

paragraph_text: The MIT Blackjack Team was a group of students and ex-students from Massachusetts Institute of Technology, Harvard Business School, Harvard University, and other leading colleges who used card counting techniques and more sophisticated strategies to beat casinos at blackjack worldwide. The team and its successors operated successfully from 1979 through the beginning of the 21st century. Many other blackjack teams have been formed around the world with the goal of beating the casinos.

paragraph_text: By the early 1850s American settlers began agitating to separate the area north of the Columbia River from Oregon Territory. The agitation resulted in Congress creating Washington Territory. Isaac I. Stevens served as its first governor. Upon his arrival in 1853, Stevens designated Olympia capital of the new territory. The first territorial legislature convened early in 1854 at the Parker and Colter store on Main Street (now Capital Way) between State Street and Olympia Ave. Olympia's Daniel Bigelow represented Thurston County in the first three legislatures. His family home still stands, now known as Bigelow House Museum, Olympia's oldest surviving home.

Question: When did the first settlers come to the state Euvin Naidoo attended business school?
Answer: 1620