Southwest became U.S. territory upon the signing of the Treaty of Guadalupe Hidalgo, February 2, 1848. The treaty was ratified by the United States Senate on March 11. Learning that California and New Mexico were applying for statehood, the settlers of the Utah area (originally having planned to petition for territorial status) applied for statehood with an ambitious plan for a State of Deseret. The Mormon settlements provided pioneers for other settlements in the West. Salt Lake City became the hub of a "far-flung commonwealth" of Mormon settlements. With new church converts coming from the East and around the world, Church leaders often assigned groups of church members as missionaries to establish other settlements throughout the West. They developed irrigation to support fairly large pioneer populations along Utah's Wasatch front (Salt Lake City, Bountiful and Weber Valley, and Provo and Utah Valley). Throughout the remainder of the 19th century, Mormon pioneers established hundreds of other settlements in Utah, Idaho, Nevada, Arizona, Wyoming, California, Canada, and Mexico—including in Las Vegas, Nevada; Franklin, Idaho (the first European settlement in Idaho); San Bernardino, California; Mesa, Arizona; Star Valley, Wyoming; and Carson Valley, Nevada. Prominent settlements in Utah included St. George, Logan, and Manti (where settlers completed the LDS Church's first three temples in Utah, each started after but finished many years before the larger and better known temple built in Salt Lake City was completed in 1893), as well as Parowan, Cedar City, Bluff, Moab, Vernal, Fillmore (which served as the territorial capital between 1850 and 1856), Nephi, Levan, Spanish Fork, Springville, Provo Bench (now Orem), Pleasant Grove, American Fork, Lehi, Sandy, Murray, Jordan, Centerville, Farmington, Huntsville, Kaysville, Grantsville, Tooele, Roy, Brigham City, and many other smaller towns and settlements. Young had an expansionist's view of the territory that he and the Mormon pioneers were settling, calling it Deseret—which according to the Book of Mormon was an ancient word for "honeybee". This is symbolized by the beehive on the Utah flag, and the state's motto, "Industry". Utah Territory (1850–1896) The Utah Territory was much smaller than the proposed state of Deseret, but it still contained all of the present states of Nevada and Utah as well as pieces of modern Wyoming and Colorado. It was created with the Compromise of 1850, and Fillmore, named after President Millard Fillmore, was designated the capital. The territory was given the name Utah after the Ute tribe