Title: Corn Belt
Content:   The Corn Belt is a region of the Midwestern United States that, since the 1850s, has dominated corn production in the United States. In the United States, "corn" is the common word for "maize". More generally, the concept of the "Corn Belt" connotes the area of the Midwest dominated by farming and agriculture.
Title: Corn Belt
Content:  There is lack of consensus regarding the constituents of the Corn Belt, although it often includes: Iowa, Illinois, Indiana, southern Michigan, western Ohio, eastern Nebraska, eastern Kansas, southern Minnesota, and parts of Missouri. It also sometimes includes: South Dakota, North Dakota, all of Ohio, Wisconsin, all of Michigan, and Kentucky. The region is characterized by level land, deep fertile soils, and a high organic soil concentration. As of 2008, the top four corn-producing states were Iowa, Illinois, Nebraska, and Minnesota, accounting for more than half of the corn growth in the United States. More recently, the USA corn belt was mapped at the county level using the Landuse and Agricultural Management Practices web-Service (LAMPS), along with animated maps of changes in time (2010-2016).
Title: Midwestern United States
Content:  of the Midwest where corn has, since the 1850s, been the predominant crop, replacing the native tall grasses. The "Corn Belt" region is defined typically to include Iowa, Illinois, Indiana, southern Michigan, western Ohio, eastern Nebraska, eastern Kansas, southern Minnesota, and parts of Missouri. , the top four corn-producing states were Iowa, Illinois, Nebraska, and Minnesota, together accounting for more than half of the corn grown in the United States. The Corn Belt also sometimes is defined to include parts of South Dakota, North Dakota, Wisconsin, and Kentucky. The region is characterized by relatively level land and deep, fertile soils, high in organic matter. Iowa produces the largest corn crop 
Title: Historic regions of the United States
Content: Bible Belt ; Borscht Belt ; Breadbasket of the United States ; Cotton Belt ; Frost Belt ; Grain Belt or Corn Belt ; Mormon Corridor or "Jello Belt" ; Lead Belt ; Rust Belt ; Snow Belt ; Sun Belt ; Tornado Alley Belts are loosely defined sub-regions found throughout the United States that are named for a perceived commonality among the included areas, which is often related to the region's economy or climate. 
Title: List of belt regions of the United States
Content: Banana belt, a term applied to several U.S. areas with milder climates than their surrounding regions. ; Bible Belt, any collection of states where evangelical and fundamentalist Protestantism are prevalent. ; Black Belt in the American South, the social history and politics, especially concerning slavery and black workers, of the geological region known as the Black Belt ; Black Belt (region of Alabama), a section of Alabama (and extending into Mississippi) having a particular concentration of African-Americans. ; Borscht Belt, a region of Jewish resorts in the Catskills. ; Corn Belt, midwestern states where corn is the primary crop. ; Cotton Belt, southern states where cotton is or was a primary crop. ; Frost Belt, a region of cold weather in the north-central United States. ; 
Title: Corn Belt
Content:  On account of new agricultural technology developments between 1860 and 1970, the Corn Belt went from producing mixed crops and livestock into becoming an area focused strictly on wheat-cash planting. After 1970, increased crop and meat production required an export outlet, but global recession and a strong dollar reduced exports and created serious problems even for the best farm managers. In 1956, former Vice President Henry A. Wallace, a pioneer of hybrid seed, declared that the Corn Belt has developed the "most productive agricultural civilization the world has ever seen". Most corn grown today is fed to livestock, especially hogs and poultry. In recent decades soybeans have grown in importance. The U.S. produces 40% of the world crop. By 1950, 99% of corn has been grown from hybrids.
Title: Corn production in the United States
Content:  temperate climate, some Alaskan farmers still manage to grow corn, through means such as greenhouse farming. Corn is popular among Alaskans. Corn is a popular crop in the state of Indiana; it is mostly grown as animal feed. Indiana is located in the United States' Corn Belt. The state of Texas is a large producer of corn; the final estimate of corn produced in 2010 was some 301 million bushels on 2,300,000 acres of land, totaling to $1.2 billion of crop. Corn was introduced to Alabama in around the eighteenth century; there have been traces of corn found in Nuyuka's Upper Creek village which dates back to the period.
Title: Corn production in the United States
Content:  The production of corn (Zea mays mays, also known as "maize") plays a major role in the economy of the United States. The US is the largest corn producer in the world, with 96,000,000 acre of land reserved for corn production. Corn growth is dominated by west/north central Iowa and east central Illinois. Approximately 13% of its annual yield is exported.
Title: Corn production in the United States
Content:  an early developer of hybrid seeds, observed that "the Corn Belt had developed into the most productive agricultural civilization the world has ever seen". This trend has continued and now the corn production level in American farms is a significant 20% higher per acre than in the rest of the world. As the growth of corn has spread to extensive production in 14 states (though it is grown to a lesser extent in all the other US states), the Corn Farmers Coalition was formed. This is a union of the National Corn Growers Association and 14 state corn associations.
Title: Rice Belt
Content:   The Rice Belt of the United States includes Arkansas, Louisiana, Mississippi and Texas, four southern U.S. states that grow a significant portion of the nation's rice crop. The name is in conformity with the Corn Belt of the Midwestern United States, in which much of the nation's corn is grown. Arkansas is the nation's leading rice producer, followed by California (not part of the Rice Belt), Louisiana, Mississippi, Texas, and Missouri (bordering on, but not part of, the Rice Belt).

Question: the world famous corn belt is in which country?
Answer: United States.
the United States.