The Territory of Idaho was an

organized incorporated territory of the United States The territory of the United States and its overseas possessions has evolved over time, from the colonial era to the present day. It includes formally organized territories, proposed and failed states, unrecognized breakaway states, internatio ...

that existed from March 3, 1863, until July 3, 1890, when the final extent of the territory was admitted to the Union as

Idaho Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...

History

1860s

The territory was officially organized on March 3, 1863, by Act of

Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...

, and signed into law by President

Abraham Lincoln Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th president of the United States, serving from 1861 until Assassination of Abraham Lincoln, his assassination in 1865. He led the United States through the American Civil War ...

. It is a successor region that was created by areas from existing territories undergoing parallel political transitions beginning with disputes over which country owned the region (See

Oregon Country Oregon Country was a large region of the Pacific Northwest of North America that was subject to a long Oregon boundary dispute, dispute between the United Kingdom and the United States in the early 19th century. The area, which had been demarcat ...

). By 1863, the area west of the

Continental Divide A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not ...

that was formerly part of the huge

Oregon Territory The Territory of Oregon was an organized incorporated territory of the United States that existed from August 14, 1848, until February 14, 1859, when the southwestern portion of the territory was admitted to the United States, Union as the Oreg ...

had been sundered from the coastal

Washington Territory The Washington Territory was an organized incorporated territory of the United States that existed from March 2, 1853, until November 11, 1889, when the territory was admitted to the Union as the State of Washington. It was created from the ...

north of the young

State of Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

to the far west and the remnant of the Oregon Territory was officially "unorganized". Most of the area east of the Continental Divide had been part of the loosely defined

Dakota Territory The Territory of Dakota was an organized incorporated territory of the United States that existed from March 2, 1861, until November 2, 1889, when the final extent of the reduced territory was split and admitted to the Union as the states of ...

ending along the 49th parallel—now the border with Canada, then a colonial possession of Great Britain. The original newly organized territory covered all of the present-day states of

and

Montana Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...

, and almost all of the present-day state of

Wyoming Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...

, omitting only a corner in the state's extreme southwest portion. It was wholly spanned east-to-west by the bustling

Oregon Trail The Oregon Trail was a east–west, large-wheeled wagon route and Westward Expansion Trails, emigrant trail in North America that connected the Missouri River to valleys in Oregon Territory. The eastern part of the Oregon Trail crossed what ...

and partly by the other emigrant trails, the

California Trail The California Trail was an emigrant trail of about across the western half of the North American continent from Missouri River towns to what is now the state of California. After it was established, the first half of the California Trail f ...

and

Mormon Trail The Mormon Trail is the route from Illinois to Utah on which Mormon pioneers (members of the Church of Jesus Christ of Latter-day Saints) traveled from 1846 to 1869. Today, the Mormon Trail is a part of the United States National Trails Syst ...

which since hitting stride in 1847, had been conveying settler wagon trains to the west, and incidentally, across the continental divide into the Snake River Basin, a key gateway into the Idaho and

interiors. The first territorial capital was at Lewiston from the inception in 1863 to 1866.

Boise Boise ( ) is the capital and most populous city of the U.S. state of Idaho. As of the 2020 census, there were 235,685 people residing in the city. Located on the Boise River in southwestern Idaho, it is east of the Oregon border and nor ...

was made the territorial capital from 1866 by a one-vote margin of the Territorial Supreme Court. Congress failed to provide official criminal or civic codes for the Idaho territory upon its inception. It was not until January 4th, 1864 that the territory's original laws were adopted. The upheaval caused by the Civil War and

Reconstruction Reconstruction may refer to: Politics, history, and sociology *Reconstruction (law), the transfer of a company's (or several companies') business to a new company *''Perestroika'' (Russian for "reconstruction"), a late 20th century Soviet Union ...

was a distant concern to those in the comparatively stable Idaho Territory, a situation which in turn encouraged settlement. In 1864, the

Montana Territory The Territory of Montana was an organized incorporated territory of the United States that existed from May 26, 1864, until November 8, 1889, when it was admitted as the 41st state in the Union as the state of Montana. Original boundaries ...

was organized from the northeastern section of the territory east of the

Bitterroot Range The Bitterroot Range is a mountain range and a subrange of the Rocky Mountains that runs along the border of Montana and Idaho in the northwestern United States. The range spans an area of and is named after the bitterroot (''Lewisia rediviva ...

. Most of the southeastern area of the territory was made part of the

. In the late 1860s, Idaho Territory became a destination for displaced Southern Democrats who fought for the

Confederate States of America The Confederate States of America (CSA), also known as the Confederate States (C.S.), the Confederacy, or Dixieland, was an List of historical unrecognized states and dependencies, unrecognized breakaway republic in the Southern United State ...

during the Civil War. These people were well represented in the early territorial legislatures, which often clashed with the appointed Republican territorial governors. The political infighting became particularly vicious in 1867 when Governor David W. Ballard asked for protection from federal troops stationed at Fort Boise against the territorial legislature. By 1870, however, the political infighting had decreased considerably. In 1868, the areas east of the 111th meridian west were made part of the newly created

Wyoming Territory The Territory of Wyoming was an organized incorporated territory of the United States that existed from July 25, 1868, until July 10, 1890, when it was admitted to the Union as the State of Wyoming. Cheyenne was the territorial capital. The ...

. Idaho Territory assumed the boundaries of the modern state at that time. The discovery of gold, silver and other valuable natural resources throughout Idaho beginning in the 1860s, as well as the completion of the

Transcontinental Railroad A transcontinental railroad or transcontinental railway is contiguous rail transport, railroad trackage that crosses a continent, continental land mass and has terminals at different oceans or continental borders. Such networks may be via the Ra ...

in 1869, brought many new people to the territory, including Chinese laborers who came to work the mines. As Idaho approached statehood, mining and other extractive industries became increasingly important to its economy. By the 1890s, for example, Idaho exported more lead than any other state.

1870s

Construction began on the Idaho Territorial Prison in 1870 and was completed by 1872. The prison was in use by the territory, then the state until 1973. The Old Idaho State Penitentiary was placed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...

in 1974 for its significance as a Territorial Prison. The site currently contains museums and an

arboretum An arboretum (: arboreta) is a botanical collection composed exclusively of trees and shrubs of a variety of species. Originally mostly created as a section in a larger garden or park for specimens of mostly non-local species, many modern arbor ...

Almost immediately after Idaho Territory was created, a public school system was created and

stage coach A stagecoach (also: stage coach, stage, road coach, ) is a four-wheeled public transport coach used to carry paying passengers and light packages on journeys long enough to need a change of horses. It is strongly sprung and generally drawn by ...

lines were established. Regular newspapers were active in Lewiston,

and Silver City by 1865. The first telegraph line reached Franklin in 1866, with Lewiston being the first town linked in northern Idaho in 1874. The first telephone call in the Pacific Northwest was made on May 10, 1878, in Lewiston. Although forming a sizable minority, members of the Church of Jesus Christ of Latter-day Saints in Idaho were held in suspicion by others in Idaho. By 1882, notable and powerful Idahoans successfully disenfranchised members of the Church of Jesus Christ of Latter-day Saints voters in Idaho Territory, citing their illegal practice of polygamy. Idaho was able to achieve statehood some six years before Utah, a territory which had a larger population and had been settled longer, but was majority members of the Church of Jesus Christ of Latter-day Saints with voting polygamists. There were four thousand Chinese living in the Idaho Territory from 1869 to 1875. Like many Chinese immigrants, they came to "Gold Mountain" to work as miners, or found work as laundrymen and cooks. The 1870 census reported there were 1,751 Chinese in Idaho City who were nearly half of city residents. The

Nez Perce War The Nez Perce War was an armed conflict in 1877 in the Western United States that pitted several bands of the Nez Perce tribe of Native Americans and their allies, a small band of the ''Palouse'' tribe led by Red Echo (''Hahtalekin'') and ...

began in the north-central portion of the territory at White Bird Canyon in June 1877, and concluded four months later in eastern

at Bear Paw.

1880s

After the capital relocation controversy, proposals to split the two regions became widespread. For the rest of the decade, Idaho Territory was nearly legislated out of existence. In 1885, the Idaho legislature published a bipartisan memorial to Congress asking for northern Idaho to be returned to Washington Territory. There were two attempts during the 49th Congress to accomplish this. On March 1, 1887 Congress sent a bill to President

Grover Cleveland Stephen Grover Cleveland (March 18, 1837June 24, 1908) was the 22nd and 24th president of the United States, serving from 1885 to 1889 and from 1893 to 1897. He was the first U.S. president to serve nonconsecutive terms and the first Hist ...

which would have returned northern Idaho to Washington Territory. Cleveland, likely as a favor to Governor Edward A. Stevenson, refused to sign the bill and it was pocket vetoed when the session of Congress ended two days later. Nevada and Utah showed interest in acquiring the remainders of southern Idaho. In 1889, the

University of Idaho The University of Idaho (U of I, or UIdaho) is a public land-grant research university in Moscow, Idaho, United States. Established in 1889 and opened three years later, it was the state's sole university for 71 years, until 1963. The un ...

was awarded to the northern town of

Moscow Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...

instead of its original planned location at Eagle Rock (now

Idaho Falls Idaho Falls is the List of cities in Idaho, fourth most populous city in Idaho and the county seat of Bonneville County, Idaho, Bonneville County. It is the state's most populous city outside the Boise metropolitan area. As of the 2020 United St ...

) in the south. This served to alleviate some of the hard feelings felt by

North Idaho The Idaho panhandle—locally known as North Idaho, Northern Idaho, or simply the Panhandle—is a salient region of the U.S. state of Idaho encompassing the state's 10 northernmost counties: Benewah, Bonner, Boundary, Clearwater, Idaho, K ...

residents over losing the capital. In a bid for statehood, Governor Stevenson called for a constitutional convention in 1889. The convention approved a constitution on August 6, 1889, and voters approved the constitution on November 5, 1889. President

Benjamin Harrison Benjamin Harrison (August 20, 1833March 13, 1901) was the 23rd president of the United States, serving from 1889 to 1893. He was a member of the Harrison family of Virginia—a grandson of the ninth president, William Henry Harrison, and a ...

signed the law admitting Idaho as a

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

on July 3, 1890.

Territorial change

File:Wpdms washington territory 1863 legend 3.png, The

(blue) and

(green)along with the latter's portions ceded to

Nebraska Territory The Territory of Nebraska was an organized incorporated territory of the United States that existed from May 30, 1854, until March 1, 1867, when the final extent of the territory was admitted to the Union as the state of Nebraska. The Nebrask ...

on March 2, 1861, and to Idaho Territory on March 3, 1863 File:Wpdms idaho territory 1863 idx.png, The Idaho Territory in 1863 File:Wpdms idaho territory 1864 legend idx.png, Areas ceded to the

and Dakota Territories in 1864 File:Wpdms idaho territory 1868.png, The Idaho, Montana, and Wyoming Territories in 1868

References

External links

Idaho State Univ. document
(PDF) on origin of name "Idaho" and how Idaho became territory

* ttp://memory.loc.gov/cgi-bin/ampage?collId=llsl&fileName=012/llsl012.db&recNum=839 Idaho Organic Act 1863 – An Act to provide a temporary Government for the Territory of Idaho
Laws of the Territory of Idaho (1864)

Constitution of the state of Idaho, and the act providing for the admission of the state (1891)
{{coord, 44.06, -114.74, type:adm1st_globe:earth_region:US-ID, display=title * Former organized territories of the United States History of Idaho Pre-statehood history of Montana Pre-statehood history of Wyoming History of the American West History of the Northwestern United States 1863 establishments in Idaho Territory 1890 disestablishments in the United States