The history of Idaho is an examination of the human history and social activity within the state of Idaho, one of the United States of America located in the Pacific Northwest area near the west coast of the United States and Canada. Other associated areas include southern Alaska, all of British Columbia, Washington, Oregon, western Montana and northern California and Nevada.

Indigenous inhabitants

Humans may have been present in Idaho for 16,600 years. Recent findings in Cooper's Ferry along the Salmon River in western Idaho near the town of Cottonwood have unearthed stone tools and animal bone fragments in what may be the oldest evidence of humans in North America. Earlier excavations in 1959 at Wilson Butte Cave near Twin Falls revealed evidence of human activity, including arrowheads, that rank among the oldest dated artifacts in North America. Native American tribes predominant in the area in historic times included the Nez Perce and the Coeur d'Alene in the north; and the Northern and Western Shoshone and Bannock peoples in the south.

European exploration

Idaho was one of the last areas in the lower 48 states of the US to be explored by people of European descent. The Lewis and Clark expedition entered present-day Idaho on August 12, 1805, at Lemhi Pass. It is believed that the first "European descent" expedition to enter southern Idaho was by a group led in 1811 and 1812 by Wilson Price Hunt, which navigated the Snake River while attempting to blaze an all-water trail westward from St. Louis, Missouri, to Astoria, Oregon. At that time, approximately 8,000 Native Americans lived in the region.

Fur trading led to the first significant incursion of Europeans in the region. Andrew Henry of the Missouri Fur Company first entered the Snake River plateau in 1810. He built Fort Henry on Henry's Fork on the upper Snake River, near modern St. Anthony, Idaho. However, this first American fur post west of the Rocky Mountains was abandoned the following spring.

The British-owned Hudson's Bay Company next entered Idaho and controlled the trade in the Snake River area by the 1820s. The North West Company's interior department of the Columbia was created in June 1816, and Donald Mackenzie was assigned as its head. Mackenzie had previously been employed by Hudson's Bay and had been a partner in the Pacific Fur Company, financed principally by John Jacob Astor. During these early years, he traveled west with a Pacific Fur Company's party and was involved in the initial exploration of the Salmon River and Clearwater River. The company proceeded down the lower Snake River and Columbia River by canoe, and were the first of the Overland Astorians to reach Fort Astoria, on January 18, 1812.

Under Mackenzie, the North West Company was a dominant force in the fur trade in the Snake River country. Out of Fort George in Astoria, Mackenzie led fur brigades up the Snake River in 1816-1817 and up the lower Snake in 1817-1818. Fort Nez Perce, established in July, 1818, became the staging point for Mackenzies' Snake brigades. The expedition of 1818-1819 explored the Blue Mountains, and traveled down the Snake River to the Bear River and approached the headwaters of the Snake. Mackenzie sought to establish a navigable route up the Snake River from Fort Nez Perce to the Boise area in 1819. While he did succeed in traveling by boat from the Columbia River through the Grand Canyon of the Snake past Hells Canyon, he concluded that water transport was generally impractical. Mackenzie held the first rendezvous in the region on the Boise River in 1819.

Despite their best efforts, early American fur companies in this region had difficulty maintaining the long-distance supply lines from the Missouri River system into the Intermountain West. However, Americans William H. Ashley and Jedediah Smith expanded the Saint Louis fur trade into Idaho in 1824. The 1832 trapper's rendezvous at Pierre's Hole, held at the foot of the Three Tetons in modern Teton County, was followed by an intense battle between the Gros Ventre and a large party of American trappers aided by their Nez Perce and Flathead allies.

The prospect of missionary work among the Native Americans also attracted early settlers to the region. In 1809, Kullyspell House, the first white-owned establishment and first trading post in Idaho, was constructed. In 1836, the Reverend Henry H. Spalding established a Protestant mission near Lapwai, where he printed the Northwest's first book, established Idaho's first school, developed its first irrigation system, and grew the state's first potatoes. Narcissa Whitman and Eliza Hart Spalding were the first non-native women to enter present-day Idaho.

Cataldo Mission, the oldest standing building in Idaho, was constructed at Cataldo by the Coeur d'Alene and Catholic missionaries. In 1842, Father Pierre-Jean De Smet, with Fr. Nicholas Point and Br. Charles Duet, selected a mission location along the St. Joe River. The mission was moved a short distance away in 1846, as the original location was subject to flooding. In 1850, Antonio Ravalli designed a new mission building and Indians affiliated with the church effort built the mission, without nails, using the wattle and daub method. In time, the Cataldo mission became an important stop for traders, settlers, and miners. It served as a place for rest from the trail, offered needed supplies, and was a working port for boats heading up the Coeur d'Alene River.

During this time, the region which became Idaho was part of an unorganized territory known as Oregon Country, claimed by both the United States and Great Britain. The United States gained undisputed jurisdiction over the region in the Oregon Treaty of 1846, although the area was under the de facto jurisdiction of the Provisional Government of Oregon from 1843 to 1849. The original boundaries of Oregon Territory in 1848 included all three of the present-day Pacific Northwest states and extended eastward to the Continental Divide. In 1853, areas north of the 46th Parallel became Washington Territory, splitting what is now Idaho in two. The future state was reunited in 1859 after Oregon became a state and the boundaries of Washington Territory were redrawn.

While thousands passed through Idaho on the Oregon Trail or during the California gold rush of 1849, few people settled there. In 1860, the first of several gold rushes in Idaho began at Pierce in present-day Clearwater County. By 1862, settlements in both the north and south had formed around the mining boom.

Settlement by non-indigenous peoples

The Church of Jesus Christ of Latter-Day Saints

The Church of Jesus Christ of Latter-Day Saints missionaries founded Fort Lemhi in 1855, but the settlement did not last. The first organized town in Idaho was Franklin, settled in April 1860 by Mormon pioneers who believed they were in Utah Territory; although a later survey determined they had crossed the border. Mormon pioneers reached areas near the current-day Grand Teton National Park in Wyoming and established most of the historic and modern communities in Southeastern Idaho. These settlements include Ammon, Blackfoot, Chubbuck, Firth, Idaho Falls, Iona, Pocatello, Rexburg, Rigby, Shelley, and Ucon.

English Large numbers of English immigrants settled in what is now the state of Idaho in the late 19th and early 20th century, many before statehood. The English found they had more property rights and paid less taxes than they did back in England. They were considered some of the most desirable immigrants at the time.The Rocky Mountain Region by Rick Newby, page 101 Many came from humble beginnings and would rise to prominence in Idaho. Frank R. Gooding was raised in a rural working-class background in England, but was eventually elected as the seventh governor of the state. Today people of English descent make up one fifth of the entire state of Idaho and form a plurality in the southern portion of the state.Sharing the Dream: White Males in a Multicultural America By Dominic J. Pulera.Reynolds Farley, 'The New Census Question about Ancestry: What Did It Tell Us?', Demography, Vol. 28, No. 3 (August 1991), pp. 414, 421.Stanley Lieberson and Lawrence Santi, 'The Use of Nativity Data to Estimate Ethnic Characteristics and Patterns', Social Science Research, Vol. 14, No. 1 (1985), pp. 44-6.Stanley Lieberson and Mary C. Waters, 'Ethnic Groups in Flux: The Changing Ethnic Responses of American Whites', Annals of the American Academy of Political and Social Science, Vol. 487, No. 79 (September 1986), pp. 82-86.

German Many German farmers also settled in what is now Idaho. German settlers were primarily Lutheran across all of the midwest and west, including Idaho, however there were small numbers of Catholics amongst them as well. In parts of Northern Idaho, German remained the dominant language until World War I, when German-Americans were pressured to convert entirely to English. Today, Idahoans of German ancestry make up nearly one fifth of all Idahoans and make up the second largest ethnic group after Idahoans of English descent with people of German ancestry being 18.1% of the state and people of English ancestry being 20.1% of the state.Richard Sisson, ed. The American Midwest (2007), p. 208; Gross (1996); Johnson (1951).Trudy Knauss Paradis, et al. German Milwaukee (2006)

Irish Irish Catholics worked in railroad centers such as Boise. Today, 10% of Idahoans self-identify as having Irish ancestry.Census 2000

African-American York, a slave owned by William Clark but considered a full member of Corps of Discovery during expedition to the Pacific, was the first recorded African American in Idaho. There is a significant African American population made up of those who came west after the abolition of slavery. Many settled near Pocatello and were ranchers, entertainers, and farmers. Although free, many blacks suffered discrimination in the early-to-mid-late 20th century. The black population of the state continues to grow as many come to the state because of educational opportunities, to serve in the military, and for other employment opportunities. There is a Black History Museum in Boise, Idaho, with an exhibit known as the "Invisible Idahoan", which chronicles the first African-Americans in the state. Blacks are the fourth largest ethnic group in Idaho according to the 2000 census. Mountain Home, Boise, and Garden City have significant African-American populations.

Basque The Basque people from the Iberian Peninsula in Spain and southern France were traditionally shepherds in Europe. They came to Idaho, offering hard work and perseverance in exchange for opportunity.Historical Overview: Basque Americans in the Columbia River Basin One of the largest Basque communities in the US is in Boise, with a Basque museum Basque Museum and Cultural Center and festival held annually in the city.

Chinese

Chinese in the mid-19th century came to America through San Francisco to work on the railroad and open businesses. By 1870, there were over 4000 Chinese and they comprised almost 30% of the population. They suffered discrimination due to the Anti-Chinese League in the 19th century which sought to limit the rights and opportunities of Chinese emigrants. Today Asians are third in population demographically after Whites and Hispanics at less than 2%.

Idaho Territory

On March 4, 1863, President Abraham Lincoln signed an act creating Idaho Territory from portions of Washington Territory and Dakota Territory with its capital at Lewiston. The original Idaho Territory included most of the areas that later became the states of Idaho, Montana and Wyoming, and had a population of under 17,000. Idaho Territory assumed the boundaries of the modern state in 1868 and was admitted as a state in 1890.