События
Montana becomes a stateMontana women given right to vote!New state constitution adoptedVolcanic fallout from Mt. St. Helen eruption blanketed Montana; Anaconda Copper Company closed Montana operations1,000,000 acres and 320 homes destroyed by wildfires in Bitterroot Valley; 19,600,000 acres state and federal land closed due to fire hazardU. S. acquired most of Montana in Louisiana PurchaseYellowstone River named by James MackayU. S. acquired the balance of Montana in Oregon TreatyMontana declared official territory; Butte foundedIndian wars ended in Montana; copper mining began in Butte
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