General Idaho Information
Capital: Boise Largest City: Boise
Demonym: Idahoan Population: Ranked 39th in the US
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Idaho information

Chronological History of Idaho

1743 Discovery of the Rocky Mountains somewhere in the vicinity of Yellowstone Park made by Pierre De la Verendrye, while in search of a western sea.



1803 The Louisiana Territory, which extended west of the Mississippi to Idaho, purchased by the United States from France for $15 million.
1805 Captains Meriwether Lewis and William Clark discover Idaho at Lemhi Pass, and cross into north Idaho over the Lolo Trail August 12. Lewis and Clark sail past Spalding October 8, meet with Nez Perce Indians at Weippe Prairie.
1806 Lewis and Clark spend more than six weeks with the Nez Perce Indians in the Kamiah area before returning eastward across the Lolo Trail.
1810 David Thompson commences fur trade near Bonners Ferry. 1809 David Thompson constructs Kullyspell House by Lake Pend Oreille. First establishment erected in the Northwest, built for the Northwest Fur Company.
1810 Missouri Fur Company establishes Fort Henry near St. Anthony, first American trading post.
1811 Pacific Fur Company expedition, the Astorians, explore the Snake River Valley on their way to the Columbia River. Led by Wilson P. Hunt, the westward journey discovers the Boise Valley.
1812 Donald Mackenzie establishes a winter fur trading post at Lewiston for the Astorians.
1813 John Reid starts fur trading post on the lower Boise River, but Bannock Indians wipe it out in 1814.
1818 Donald Mackenzie makes first exploration of southern Idaho with his Snake River expedition of trappers. Treaty of joint occupancy between Great Britain and the United States leaves Oregon country (including Idaho) open to citizens of both nations.

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