Iowa i/ˈaɪ.əwə/ is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from theIoway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the Frenchcolony of New France. After the Louisiana Purchase, settlers laid the foundation for an agriculture-based economy in the heart of the Corn Belt. Iowa is often known as the "Food Capital of the World". However, Iowa's economy, culture, and landscape are diverse.
In the latter half of the 20th century, Iowa's agricultural economy transitioned to a diversified economy of advanced manufacturing, processing, financial services, biotechnology, and green energy production. The state has a population of just over 3 million (2010) and its capital and largest city is Des Moines. Iowa has been listed as one of the safest states in which to live.
Iowa is bordered by the Mississippi River on the east; the Missouri River and the Big Sioux River on the west; the northern boundary is a line along 43 degrees, 30 minutes north latitude. The southern border is the Des Moines River and a line along approximately 40 degrees 35 minutes north, as decided by the U.S. Supreme Court in Missouri v. Iowa after a standoff between Missouri and Iowa known as the Honey War.
Iowa has 99 counties, but 100 county seats because Lee County has two. The state capital, Des Moines, is located in Polk County.
Iowa's bedrock geology generally increases in age from west to east. In northwest Iowa Cretaceousbedrock can be 74 million years old, in eastern Iowa Cambrian bedrock dates to ca. 500 million years ago.
Iowa is generally not flat; most of the state consists of rolling hills. Prior divides Iowa into eight landforms based on glaciation, soils, topography, and river drainage. Loess hills lie along the western border of the state, some of which are several hundred feet thick. In the northeast, along the Mississippi River, is a section of the Driftless Zone, which in Iowa consists of steep hills and valleys which appear almost mountainous.
There are several natural lakes in the state, most notably Spirit Lake, West Okoboji Lake, and East Okoboji Lake in northwest Iowa (see Iowa Great Lakes). To the east lies Clear Lake. Man-made lakes include Lake Odessa, Saylorville Lake, Lake Red Rock, Coralville Lake, Lake MacBride, and Rathbun Lake. The northwest part of the state also contains a considerable number of remnants of the once common wetland areas such as Barringer Slough.
Iowa's natural vegetation is tallgrass prairie and savanna in upland areas, with dense forest and wetlands in floodplains and protected river valleys, and pothole wetlands in northern prairie areas. Most of Iowa is used for agriculture, crops cover 60% of the state, grasslands (mostly pasture and hay with some prairie and wetland) cover 30%, and forests cover 7%; urban areas and water cover another 1% each. The explosion in the number of high-density livestock facilities in Iowa has led to increased risk of rural water contamination and a perceived decline in air quality. Other factors negatively affecting Iowa's environment include the extensive use of older coal-fired power plants, fertilizer and pesticide runoff from crop production, and diminishment of the Jordan Aquifer.
There is a dearth of natural areas in Iowa; less than 1% of the tallgrass prairie that once covered most of Iowa remain intact, only about 5% of the state's prairie pothole wetlands remain, and most of the original forest has been lost. Iowa ranks 49th of U.S. states in public land holdings. Threatened or endangered animals in Iowa include the Bald Eagle, Interior Least Tern, Piping Plover, Indiana Bat, Pallid Sturgeon, the Iowa Pleistocene Land Snail, Higgins' Eye Pearly Mussel, and the Topeka Shiner. Endangered or threatened plants include Western Prairie Fringed Orchid, Eastern Prairie Fringed Orchid, Mead's Milkweed, Prairie Bush Clover, and Northern Wild Monkshood.
Iowa, like most of the Midwest, has a humid continental climate throughout the state (Koppen climate classification Dfa) with extremes of both heat and cold. The average annual temperature at Des Moines is 50 °F (10 °C); for some locations in the north the figure is under 45 °F (7 °C), while Keokuk, on the Mississippi River, averages 52 °F (11 °C). Winters are often harsh and snowfall is common.
Spring ushers in the beginning of the severe weather season. Iowa averages about 50 days of thunderstorm activity per year. Tornadoes are common during the spring and summer months, with an average of 37 tornadoes in a single year. In 2008, twelve people were killed by tornadoes in Iowa, making it the deadliest year since 1968 and also the second most tornadoes in a year with 105, matching the total from 2001.
Iowa summers are known for heat and humidity, with daytime temperatures often near 90 °F (32 °C) and sometimes exceeding 100 °F (38 °C). Average winters in the state have been known to drop well below freezing, even dropping below −18 °C (−0 °F). Iowa's all time hottest temperature of 118 °F (48 °C) was recorded at Keokuk on July 20, 1934; the all time lowest temperature of −47 °F (−44 °C)was recorded at Elkader on February 3, 1996.
|
Monthly Normal High and Low Temperatures For Various Iowa Cities (°F) |
||||||||||||
|
City |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
30/13 |
36/19 |
48/29 |
61/41 |
72/52 |
81/63 |
85/68 |
83/66 |
76/57 |
65/45 |
48/32 |
35/20 |
|
|
Des Moines |
29/12 |
35/18 |
48/29 |
61/40 |
72/51 |
82/61 |
86/66 |
84/64 |
76/54 |
64/42 |
47/29 |
33/17 |
|
Dubuque |
25/9 |
31/15 |
43/26 |
57/38 |
69/49 |
79/58 |
82/62 |
80/60 |
72/52 |
60/40 |
44/28 |
30/15 |
|
Sioux City |
29/8 |
35/15 |
47/26 |
62/37 |
73/49 |
82/58 |
86/63 |
84/61 |
76/50 |
64/38 |
45/25 |
32/13 |
|
Waterloo |
26/6 |
32/13 |
45/25 |
60/36 |
72/48 |
82/58 |
85/62 |
83/60 |
75/50 |
62/38 |
45/25 |
31/12 |
Iowa has a relatively smooth gradient of varying precipitation across the state, with areas in the southeast of the state receiving an average of over 38 inches of rain annually, and the northwest of the state receiving less than 28 inches. The pattern of precipitation across Iowa is seasonal, with more rain falling in the summer months. In Des Moines, roughly in the center of the state, over two-thirds of the 34.72 inches of rain fall from April through September, and about half of the average annual precipitation falls from May through August.
When American Indians first arrived in what is now Iowa more than 13,000 years ago, they were hunters and gatherers living in a Pleistocene glacial landscape. By the time European explorers visited Iowa, American Indians were largely settled farmers with complex economic, social, and political systems. This transformation happened gradually. During the Archaic period (10,500–2,800 years ago), American Indians adapted to local environments and ecosystems, slowly becoming more sedentary as populations increased.
More than 3,000 years ago, during the Late Archaic period, American Indians in Iowa began utilizing domesticated plants. The subsequent Woodland period saw an increased reliance on agriculture and social complexity, with increased use of mounds, ceramics, and specialized subsistence. During the Late Prehistoric period (beginning about AD 900) increased use of maize and social changes led to social flourishing and nucleated settlements.
The arrival of European trade goods and diseases in the Protohistoric period led to dramatic population shifts and economic and social upheaval, with the arrival of new tribes and early European explorers and traders. There were numerous Indian tribes living in Iowa at the time of early European exploration. Tribes which were probably descendants of the prehistoric Oneota include the Dakota, Ho-Chunk, Ioway, and Otoe. Tribes which arrived in Iowa in the late prehistoric or protohistoric periods include the Illiniwek, Meskwaki, Omaha, and Sauk.
The first known European explorers to document Iowa were Jacques Marquette and Louis Jolliet who traveled the Mississippi River in 1673 documenting several Indian villages on the Iowa side. The area of Iowa was claimed for France and remained a French territory until 1763. The French, prior to their impending defeat in the French and Indian War, transferred ownership to their ally, Spain. Spain practiced very loose control over the Iowa region, granting trading licenses to French and British traders, who established trading posts along the Mississippi and Des Moines Rivers.
Iowa was part of a territory known as La Louisiane or Louisiana, and European traders were interested in lead and furs obtained by Indians. The Saukand Meskwaki effectively controlled trade on the Mississippi in the late 18th century and early 19th century. Among the early traders on the Mississippi were Julien Dubuque, Robert La Salle, and Paul Marin. Along the Missouri River at least five French and English trading houses were built prior to 1808. In 1800, Napoleon Bonaparte took control of Louisiana from Spain in a treaty.
After the 1803 Louisiana Purchase, Iowa was placed under United States control. Much of Iowa was mapped by Zebulon Pike in 1805, but it was not until the construction of Fort Madison in 1808 that the U.S. established tenuous military control over the region.
Fort Madison was built to control trade and establish U.S. dominance over the Upper Mississippi, but it was poorly designed and disliked by the Sauk andHo-Chunk, many of whom allied with the British, who had not abandoned claims to the territory. Fort Madison was defeated by British-supported Indians in 1813 during the War of 1812, and Fort Shelby in Prairie du Chien, Wisconsin, also fell to the British. Black Hawk took part in the siege of Fort Madison.
After the war, the U.S. reestablished control of the region through the construction of Fort Armstrong, Fort Snelling in Minnesota, and Fort Atkinson inNebraska.
The U.S. encouraged settlement of the east side of the Mississippi and removal of Indians to the west. Trade continued in furs and lead, but disease and forced population movement decimated Indian cultures and economies. A disputed 1804 treaty between Quashquame and William Henry Harrison that surrendered much of Illinois to the U.S. enraged many Sauk and led to the 1832 Black Hawk War. As punishment for the uprising, and as part of a larger settlement strategy, treaties were subsequently designed to remove all Indians from Iowa.
The Sauk and Meskwaki were pushed out of the Mississippi valley in 1832, out of the Iowa River valley in 1843, and out of Iowa altogether in 1846. Many Meskwaki later returned to Iowa and settled near Tama, Iowa; the Meskwaki Settlement remains to this day. In 1856 the Iowa Legislature passed an unprecedented act allowing the Meskawki to purchase the land; Indians were not usually permitted to do so. The Ho-Chunk were removed from Iowa in 1850, and the Dakota were removed by the late 1850s. Western Iowa around modern Council Bluffs was used as a way station for other tribes being moved west, including the Potawatomi.
The first American settlers officially moved to Iowa in June 1833. Primarily, they were families from Ohio, Pennsylvania, New York, Indiana, Kentucky, and Virginia. On July 4, 1838, the U.S. Congress established the Territory of Iowa. President Martin Van Buren appointed Robert Lucasgovernor of the territory, which at the time had 22 counties and a population of 23,242.
Almost immediately after achieving territorial status, a clamor arose for statehood. On December 28, 1846, Iowa became the 29th state in the Union when PresidentJames K. Polk signed Iowa's admission bill into law. Once admitted to the Union, the state's boundary issues resolved, and most of its land purchased from the Indians, Iowa set its direction to development and organized campaigns for settlers and investors, boasting the young frontier state's rich farmlands, fine citizens, free and open society, and good government.
Iowa has a long tradition of state and county fairs. The first and second Iowa State Fairs were held in the more developed eastern part of the state at Fairfield. The first fair was held October 25–27, 1854, at a cost of around $323. Thereafter, the fair moved to locations closer to the center of the state and in 1886 found a permanent home in Des Moines. The State Fair has been held every year since except for the year 1898 due to the Spanish-American War and the World's Fair being held in nearby Omaha, Nebraska. The fair was also a World War II wartime casualty from 1942–1945.
Iowa supported the Union during the Civil War, voting heavily for Abraham Lincoln, though there was a strong antiwar "Copperhead" movement among settlers of southern origins and among Catholics. There were no battles in the state, but Iowa sent large supplies of food to the armies and the eastern cities. Much of Iowa's support for the Union can be attributed to Samuel J. Kirkwood, its wartime governor. Of a total population of 675,000, about 116,000 men were subjected to military duty. Iowa contributed proportionately more men to Civil War military service than did any other state, north or south, sending more than 75,000 volunteers to the armed forces, over one-sixth of whom were in their graves before Appomattox.
Most fought in the great campaigns in the Mississippi Valley and in the South. Iowa troops fought at Wilson's Creek in Missouri, Pea Ridge in Arkansas, Forts Henry and Donelson, Shiloh, Chattanooga, Chickamauga, Missionary Ridge, and Rossville Gap as well as Vicksburg, Iuka, and Corinth. They served with the Army of the Potomoc in Virginia and fought under Union General Philip Sheridan in the Shenandoah Valley. Many died and were buried at Andersonville. They marched on General Nathaniel Banks' ill-starred expedition to the Red River. Twenty-seven Iowans have been awarded the Medal of Honor, the highest military decoration awarded by the United States government, which was first awarded in the Civil War.
Iowa had several brigadier generals and four major generals—Grenville Mellen Dodge, Samuel R. Curtis, Francis J. Herron, and Frederick Steele—and saw many of its generals go on to state and national prominence following the war.
Following the Civil War, Iowa's population continued to grow dramatically, from 674,913 people in 1860 to 1,194,020 in 1870. The introduction of railroads in the 1850s and 1860s transformed Iowa into a major agricultural producer.
In 1917, the United States entered World War I and farmers as well as all Iowans experienced a wartime economy. For farmers, the change was significant. Since the beginning of the war in 1914, Iowa farmers had experienced economic prosperity. In the economic sector, Iowa also has undergone considerable change.