** Larry Craig, U. S. senator from Idaho

** At the National Reactor Testing Station near Idaho Falls, Idaho, atomic reactor SL-1 explodes, killing 3 military technicians.

** The first nuclear-generated electrical power is sold commercially, partially powering the town of Arco, Idaho.

** Philip Batt, 29th Governor of the U. S. state of Idaho

** CDOT map of the City of Idaho Springs

** Soda Springs, Idaho

** Chesterfield Historic District, Chesterfield, Idaho, listed on the NRHP

** Kuna Caves, a lava tube cave in Idaho

** Id., an older postal abbreviation for Idaho

** University of Idaho

** Idaho in the American Civil War

** Territory of France that encompassed land that would later become part of the Territory of Idaho:

** Territory of the United Kingdom that encompassed land that would later become part of the Territory of Idaho:

** International territory that encompassed land that would later become part of the Territory of Idaho:

** U. S. territory that encompassed land that would later become part of the Territory of Idaho:

** U. S. territories that encompassed land that was previously part of the Territory of Idaho:

** U. S. states that encompass land that was once part of the Territory of Idaho:

** Those parts of Idaho and Montana that are within Yellowstone National Park are part of the Diocese of Cheyenne, Wyoming, which is in a different province.

** Idaho Territory ( split off in 1863 )

** Symbols of Idaho

** Department of Dakota ( 1866 – 1911 ) Minnesota, Montana, North Dakota, and parts of Idaho, South Dakota and the Yellowstone portion of Wyoming.

** Department of the Platte ( 1866 – 1898 ) Iowa, Nebraska, Colorado, Dakota Territory, Utah Territory, Wyoming ( except Yellowstone ), and a portion of Idaho.

** District of Oregon ( 1853 – 1858 ; and 1864 – 1867 ) Washington Territory, Oregon Territory and Idaho Territory.

** Geology of the Australian Capital Territory

** Territory of France that encompassed land that was part of the Louisiana Purchase:

** Aloha Tower is officially dedicated at Honolulu Harbor in the Territory of Hawai ' i.

** Pike's Peak Gold Rush begins in the Colorado Territory.

** Kuala Lumpur, the capital of Malaysia, was declared as a Federal Territory.

** Mexican – American War formally ends, making the unincorporated, unorganized California Territory a provisional official possession: The Treaty of Guadalupe Hidalgo is signed, ending the war and ceding to the United States virtually all of what is today the southwest United States.

** The British Indian Ocean Territory is created, consisting of Chagos Archipelago, Aldabra, Farquhar and Des Roches islands ( on June 23, 1976 Aldabra, Farquhar and Des Roches are returned to the Seychelles ).

** The British government admits the former Hudson's Bay Company territory of Rupert's Land and the North-Western Territory to the Dominion of Canada.

** The first ACT ( Australian Capital Territory ) elections are held.

** The ACT ( Australian Capital Territory ) Legislative Assembly meets for the first time.

** The New Mexico Territory is organized by order of the United States Congress.

** U. S. Congress passes law to split the Mississippi Territory, after Mississippi drafts a constitution, creating the Alabama Territory effective in August.

** organized Utah Territory and New Mexico Territory with slavery to be decided by popular sovereignty.

** Texas dropped its claim to land north of the 32nd parallel north and west of the 103rd meridian west in favor of New Mexico Territory, and north of the 36 ° 30 ' parallel north and east of the 103rd meridian west which became unorganized territory.

** Iowa Territory ( land between the Mississippi and Missouri Rivers ) was split from Wisconsin Territory 1838 and became a state in 1846.

** Present day states of Montana and Wyoming were also part of Dakota Territory

** Territory of France that encompassed land that would later become part of Indian territory:

** Adelaide River, Northern Territory, a town next to the river

** Arapahoe County, Kansas Territory

** Arrappahoe County, Jefferson Territory

** Arapahoe County, Colorado Territory