Utah is a state in the western United States. It became the 45th state admitted to the U. S. on January 4,1896, Utah is the 13th-largest by area, 31st-most-populous, and 10th-least-densely populated of the 50 United States. Utah has a population of more than 3 million, approximately 80% of whom live along the Wasatch Front, Utah is bordered by Colorado to the east, Wyoming to the northeast, Idaho to the north, Arizona to the south, and Nevada to the west. It touches a corner of New Mexico in the southeast, approximately 62% of Utahns are reported to be members of The Church of Jesus Christ of Latter-day Saints or LDS, which greatly influences Utahn culture and daily life. The LDS Churchs world headquarters is located in Salt Lake City, Utah is the only state with a majority population belonging to a single church. The state is a center of transportation, information technology and research, government services, mining, in 2013, the U. S. Census Bureau estimated that Utah had the second fastest-growing population of any state.
St. George was the metropolitan area in the United States from 2000 to 2005. Utah has the 14th highest median income and the least income inequality of any U. S. state. A2012 Gallup national survey found Utah overall to be the best state to live in based on 13 forward-looking measurements including various economic, the name Utah is derived from the name of the Ute tribe. It means people of the mountains in the Ute language, according to other sources Utah is derived from the Apache name Yudah which means Tall. These Native American tribes are subgroups of the Ute-Aztec Native American ethnicity and were sedentary, the Ancestral Pueblo people built their homes through excavations in mountains, and the Fremont people built houses of straw before disappearing from the region around the 15th century. Another group of Native Americans, the Navajo, settled in the region around the 18th century, in the mid-18th century, other Uto-Aztecan tribes, including the Goshute, the Paiute, the Shoshone, and the Ute people, settled in the region.
These five groups were present when the first European explorers arrived, the southern Utah region was explored by the Spanish in 1540, led by Francisco Vásquez de Coronado, while looking for the legendary Cíbola. A group led by two Catholic priests—sometimes called the Dominguez-Escalante Expedition—left Santa Fe in 1776, hoping to find a route to the coast of California, the expedition traveled as far north as Utah Lake and encountered the native residents. The Spanish made further explorations in the region, but were not interested in colonizing the area because of its desert nature, in 1821, the year Mexico achieved its independence from Spain, the region became known as part of its territory of Alta California. European trappers and fur traders explored some areas of Utah in the early 19th century from Canada, the city of Provo, Utah was named for one, Étienne Provost, who visited the area in 1825. The city of Ogden, Utah was named after Peter Skene Ogden, in late 1824, Jim Bridger became the first known English-speaking person to sight the Great Salt Lake.
Due to the salinity of its waters, Bridger thought he had found the Pacific Ocean
Great Basin Desert
The Great Basin Desert is part of the Great Basin between the Sierra Nevada and the Wasatch Range. It is a desert with hot, dry summers and snowy winters. The desert spans a large part of the state of Nevada, and extends into western Utah, eastern California, the desert is one of the four biologically defined deserts in North America, in addition to the Mojave and Chihuahuan Deserts. Basin and range topography characterizes the desert, wide valleys bordered by mountain ranges generally oriented north-south. There are more than 33 peaks within the desert with summits higher than 9,800 feet, the biological communities of the Great Basin Desert vary according to altitude, from low salty dry lakes, up through rolling sagebrush valleys, to pinyon-juniper forests. According to Grayson, more than 600 species of live in the floristic Great Basin. Sixty-three of these species have been identified as species of concern due to contracting natural habitats. The ecology of the desert varies across geography, different locations in the desert have different amounts of precipitation, depending on the strength of these rain shadows.
The environment is influenced by Pleistocene lakes that dried after the last ice age, Lake Lahontan, each of these lakes left different amounts of salinity and alkalinity. The Great Basin Desert is defined by its animals and plants, scientists have different definitions of the Great Basin Desert, which are often defined by negatives. J. Robert Macey defines the Great Basin scrub desert as lacking creosote bush, the Great Basin Desert includes several arid basins lacking Larrea tridentata such as the Chalfant, Hammil and Queen valleys, as well as all but the southeast portion of the Owens Valley. Conversely, the Panamint and Eureka valleys have creosote bush, the study and definition of ecoregions can indicate the boundaries of the Great Basin Desert. In 1987, J. M. Omernik defined a desert ecoregion between the Sierra Nevada and Wasatch Range, naming it the Northern Basin and Range ecoregion. In 1999, the U. S. EPA renamed the Northern Basin and Range to Central Basin and Range and he states that the Great Basin Desert is encompassed within that area.
This article describes the ecology of the region, including the high-elevation areas. See Great Basin montane forests for more details on the high-elevation ecoregion. This is the climate of the high desert, the Great Basin desert climate begins with the Sierra Nevada in eastern California. Rising 14,000 feet above sea level, this mountain range casts a rain shadow over the desert
Radiocarbon dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed by Willard Libby in the late 1940s, Libby received the Nobel Prize for his work in 1960. The radiocarbon dating method is based on the fact that radiocarbon is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting radiocarbon combines with oxygen to form radioactive carbon dioxide. When the animal or plant dies, it stops exchanging carbon with its environment, and from that point onwards the amount of 14C it contains begins to decrease as the 14C undergoes radioactive decay. Measuring the amount of 14C in a sample from a plant or animal such as a piece of wood or a fragment of bone provides information that can be used to calculate when the animal or plant died. The idea behind radiocarbon dating is straightforward, but years of work were required to develop the technique to the point where accurate dates could be obtained.
Research has been ongoing since the 1960s to determine what the proportion of 14C in the atmosphere has been over the past fifty thousand years. The resulting data, in the form of a curve, is now used to convert a given measurement of radiocarbon in a sample into an estimate of the samples calendar age. Other corrections must be made to account for the proportion of 14C in different types of organisms, additional complications come from the burning of fossil fuels such as coal and oil, and from the above-ground nuclear tests done in the 1950s and 1960s. Conversely, nuclear testing increased the amount of 14C in the atmosphere, measurement of radiocarbon was originally done by beta-counting devices, which counted the amount of beta radiation emitted by decaying 14C atoms in a sample. The development of dating has had a profound impact on archaeology. In addition to permitting more accurate dating within archaeological sites than previous methods, histories of archaeology often refer to its impact as the radiocarbon revolution.
Radiocarbon dating has allowed key transitions in prehistory to be dated, such as the end of the last ice age, and they synthesized 14C using the laboratorys cyclotron accelerator and soon discovered that the atoms half-life was far longer than had been previously thought. This was followed by a prediction by Serge A. Korff, employed at the Franklin Institute in Philadelphia and it had previously been thought that 14C would be more likely to be created by deuterons interacting with 13C. At some time during World War II, Willard Libby, who was at Berkeley, learned of Korffs research, in 1945, Libby moved to the University of Chicago where he began his work on radiocarbon dating. He published a paper in 1946 in which he proposed that the carbon in living matter might include 14C as well as non-radioactive carbon, by contrast, methane created from petroleum showed no radiocarbon activity because of its age. The results were summarized in a paper in Science in 1947, Libby and James Arnold proceeded to test the radiocarbon dating theory by analyzing samples with known ages
Archaeology, or archeology, is the study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, biofacts or ecofacts, Archaeology can be considered both a social science and a branch of the humanities. In North America, archaeology is considered a sub-field of anthropology, archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology as a field is distinct from the discipline of palaeontology, Archaeology is particularly important for learning about prehistoric societies, for whom there may be no written records to study. Prehistory includes over 99% of the human past, from the Paleolithic until the advent of literacy in societies across the world, Archaeology has various goals, which range from understanding culture history to reconstructing past lifeways to documenting and explaining changes in human societies through time.
The discipline involves surveying and eventually analysis of data collected to learn more about the past, in broad scope, archaeology relies on cross-disciplinary research. Archaeology developed out of antiquarianism in Europe during the 19th century, Archaeology has been used by nation-states to create particular visions of the past. Nonetheless, archaeologists face many problems, such as dealing with pseudoarchaeology, the looting of artifacts, a lack of public interest, the science of archaeology grew out of the older multi-disciplinary study known as antiquarianism. Antiquarians studied history with attention to ancient artifacts and manuscripts. Tentative steps towards the systematization of archaeology as a science took place during the Enlightenment era in Europe in the 17th and 18th centuries, in Europe, philosophical interest in the remains of Greco-Roman civilization and the rediscovery of classical culture began in the late Middle Age. Antiquarians, including John Leland and William Camden, conducted surveys of the English countryside, one of the first sites to undergo archaeological excavation was Stonehenge and other megalithic monuments in England.
John Aubrey was a pioneer archaeologist who recorded numerous megalithic and other monuments in southern England. He was ahead of his time in the analysis of his findings and he attempted to chart the chronological stylistic evolution of handwriting, medieval architecture and shield-shapes. Excavations were carried out in the ancient towns of Pompeii and Herculaneum and these excavations began in 1748 in Pompeii, while in Herculaneum they began in 1738. The discovery of entire towns, complete with utensils and even human shapes, prior to the development of modern techniques, excavations tended to be haphazard, the importance of concepts such as stratification and context were overlooked. The father of archaeological excavation was William Cunnington and he undertook excavations in Wiltshire from around 1798, funded by Sir Richard Colt Hoare. Cunnington made meticulous recordings of neolithic and Bronze Age barrows, one of the major achievements of 19th century archaeology was the development of stratigraphy.
The idea of overlapping strata tracing back to successive periods was borrowed from the new geological and paleontological work of scholars like William Smith, James Hutton, the application of stratigraphy to archaeology first took place with the excavations of prehistorical and Bronze Age sites
Historic districts in the United States
Buildings, structures and sites within a historic district are normally divided into two categories and non-contributing. Districts greatly vary in size, some have hundreds of structures, the U. S. federal government designates historic districts through the United States Department of Interior under the auspices of the National Park Service. Federally designated historic districts are listed on the National Register of Historic Places, state-level historic districts may follow similar criteria or may require adherence to certain historic rehabilitation standards. Local historic district designation offers, by far, the most legal protection for historic properties because most land use decisions are made at the local level, local districts are generally administered by the county or municipal government. The first U. S. historic district was established in Charleston, South Carolina in 1931, Charleston city government designated an Old and Historic District by local ordinance and created a board of architectural review to oversee it.
New Orleans followed in 1937, establishing the Vieux Carré Commission, other localities picked up on the concept, with the city of Philadelphia enacting its historic preservation ordinance in 1955. The Supreme Court case validated the protection of resources as an entirely permissible governmental goal. In 1966 the federal government created the National Register of Historic Places, conference of Mayors had stated Americans suffered from rootlessness. By the 1980s there were thousands of federally designated historic districts, Historic districts are generally two types of properties and non-contributing. In general, contributing properties are integral parts of the historic context, in addition to the two types of classification within historic districts, properties listed on the National Register of Historic Places are classified into five broad categories. They are, structure, site and object, all but the eponymous district category are applied to historic districts listed on the National Register.
A listing on the National Register of Historic Places is governmental acknowledgment of a historic district, the Register is an honorary status with some federal financial incentives. The National Register of Historic Places defines a historic district per U. S. federal law, a district may comprise individual elements separated geographically but linked by association or history. Districts established under U. S. federal guidelines generally begin the process of designation through a nomination to the National Register of Historic Places, the National Register is the official recognition by the U. S. government of cultural resources worthy of preservation. While designation through the National Register does offer a district or property some protections, if the federal government is not involved, the listing on the National Register provides the site, property or district no protections. If, company A was under federal contract the Smith House would be protected, a federal designation is little more than recognition by the government that the resource is worthy of preservation.
Usually, the National Register does not list religious structures, moved structures, reconstructed structures, however, if a property falls into one of those categories and are integral parts of districts that do meet the criteria an exception allowing their listing will be made. Historic district listings, like all National Register nominations, can be rejected on the basis of owner disapproval, in the case of historic districts, a majority of owners must object in order to nullify a nomination to the National Register of Historic Places