Idaho is a landlocked state in the Pacific Northwest and Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington and Oregon to the west; the state shares a small portion of the Canada–United States border to the north with the Canadian province of British Columbia. Idaho's state capital and largest city is Boise. With an area of 83,569 square miles (216,440 km2), Idaho is the 14th-largest state by land area. The state has a population of approximately 2 million people; it ranks as the 13th-least populous and the seventh-least densely populated of the 50 U.S. states.
The Territory of Idaho was an organized incorporated territory of the United States that existed from March 3, 1863, until July 3, 1890, when the final extent of the territory was admitted to the Union as Idaho.
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, international and interstate purchases, cessions, and land grants, and historical military departments and administrative districts. The last section lists informal regions from American vernacular geography known by popular nicknames and linked by geographical, cultural, or economic similarities, some of which are still in use today.
The Snake War (1864–1868) was an irregular war fought by the United States of America against the "Snake Indians," the settlers' term for Northern Paiute, Bannock and Western Shoshone bands who lived along the Snake River. Fighting took place in the states of Oregon, Nevada, and California, and in Idaho Territory. Total casualties from both sides of the conflict numbered 1,762 dead, wounded, or captured.
The Department of the Pacific or Pacific Department was a major command (Department) of the United States Army from 1853 to 1858. It replaced the Pacific Division, and was itself replaced by the Department of California and the Department of Oregon.
The Idaho State Capitol in Boise is the home of the government of the U.S. state of Idaho. Although Lewiston briefly served as Idaho's capital city from the formation of the old federal Idaho Territory in 1863, the territorial legislature moved it to Boise on December 24, 1864. It continued as such following the admission of the Territory as the 43rd state in the federal Union on July 3, 1890, the day before Independence Day, the Fourth of July, when a 43rd white star was added officially to the constellation in the upper corner blue field (canton) of the red and white striped American Flag.
Fort Boise is either of two different locations in the Western United States, both in southwestern Idaho. The first was a Hudson's Bay Company (HBC) trading post near the Snake River on what is now the Oregon border, dating from the era when Idaho was included in the British fur company's Columbia District. After several rebuilds, the fort was ultimately abandoned in 1854, after it had become part of United States territory following settlement in 1846 of the northern boundary dispute.
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.
The following is an alphabetical list of articles related to the U.S. state of Wyoming.
The following is an alphabetical list of articles related to the U.S. state of Idaho.
The history of Idaho in the American Civil War is atypical, as the territory was far from the battlefields.
The following outline is provided as an overview of and topical guide to the U.S. state of Montana:
The following outline is provided as an overview of and topical guide to the U.S. state of Nevada:
The following outline is provided as an overview of and topical guide to the U.S. state of Oklahoma:
The following outline is provided as an overview of and topical guide to the U.S. state of Oregon:
The following outline is provided as an overview of and topical guide to the U.S. state of Washington:
The following outline is provided as an overview of and topical guide to the U.S. state of Wyoming:
The following chronology traces the territorial evolution of the U.S. State of Idaho.
The following is a timeline of the history of the city of Boise, Idaho, United States.
