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Arivaca Albidella
Arivaca ( O'odham: Ali Wa:pk) is an unincorporated community in Pima County, Arizona, United States.Arivaca
, Arizona Department of Commerce, August 10, 2007. Accessed 2007-09-07.
It is located north of the Mexican border and northwest of the port of entry at Nogales. The European-American history of the area dates back at least to 1695, although the community was not founded until 1878. Arivaca has the ZIP code 85601. The 85601

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Unincorporated Area
An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as the military). There are many unincorporated communities and areas in the United States and Canada, but many countries do not use the concept of an unincorporated area. By country Argentina In Argentina, the provinces of Chubut Province, Chubut, Córdoba Province (Argentina), Córdoba, Entre Ríos Province, Entre Ríos, Formosa Province, Formosa, Neuquén Province, Neuquén, Río Negro Province, Río Negro, San Luis Province, San Luis, Santa Cruz Province, Argentina, Santa Cruz, Santiago del Estero Province, Santiago del Estero, Tierra del Fuego Province, Argentina, Tierra del Fuego, and Tucumán Province, Tucumán have areas that are outside any municipality or commune. Australia Unlike many other countries, Australia has only local go ...
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Copper
Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable, unalloyed metallic form. This means that copper is a native metal. This led to very early human use in several regions, from . Thousands of years later, it was the first metal to be smelted from sulfide ores, ; the first metal to be cast into a shape in a mold, ; and the first metal to be purposely alloyed with another metal, tin, to create bronze, ...
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Lead
Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable nuclide, stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its Amphoterism, amphoteric nature; lead and lead oxides react with acids and base (chemistry), bases, and it tends to form covalent bonds. Lead compounds, Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited ...
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Silver
Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form ("native metal, native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Other than in currency and as an in ...
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Gold
Gold is a chemical element; it has chemical symbol Au (from Latin ) and atomic number 79. In its pure form, it is a brightness, bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactivity (chemistry), reactive chemical elements, being the second-lowest in the reactivity series. It is solid under standard temperature and pressure, standard conditions. Gold often occurs in free elemental (native state (metallurgy), native state), as gold nugget, nuggets or grains, in rock (geology), rocks, vein (geology), veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as in electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to ...
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Mexican Revolution
The Mexican Revolution () was an extended sequence of armed regional conflicts in Mexico from 20 November 1910 to 1 December 1920. It has been called "the defining event of modern Mexican history". It saw the destruction of the Federal Army, its replacement by a Liberation Army of the South, revolutionary army, and the transformation of Mexican culture and Federal government of Mexico, government. The northern Constitutionalists in the Mexican Revolution, Constitutionalist faction prevailed on the battlefield and drafted the present-day Constitution of Mexico, which aimed to create a strong central government. Revolutionary generals held power from 1920 to 1940. The revolutionary conflict was primarily a civil war, but foreign powers, having important economic and strategic interests in Mexico, figured in the outcome of Mexico's power struggles; United States involvement in the Mexican Revolution, the U.S. involvement was particularly high. The conflict led to the deaths of around ...
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United States Cavalry
The United States Cavalry, or U.S. Cavalry, was the designation of the mounted force of the United States Army. The United States Cavalry was formally created by an act of United States Congress, Congress on 3 August 1861 and ceased as a distinct Army branch in 1942.Price (1883) p. 103, 104 The name "cavalry" continues to be used as a designation for various specific United States Army formations and functions. This branch, alongside the Infantry Branch (United States), Infantry and Field Artillery Branch (United States), Artillery branches, was formerly considered to be one of the "classic" combat arms branches (defined as those branches of the army with the primary mission of engaging in armed combat with an enemy force). From the United States Declaration of Independence and the American War of Independence onwards, mounted troops were raised ad-hoc by the United States as emergencies presented themselves and were disbanded as soon as these had passed. In 1833, Congress cr ...
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Court Of Private Land Claims
The United States Court of Private Land Claims (1891–1904) was an ad-hoc court created to decide land claims guaranteed by the Treaty of Guadalupe Hidalgo, in the territories of New Mexico, Arizona, and Utah, and in the states of Nevada, Colorado, and Wyoming. Origins During Spanish (1598–1821) and Mexican (1821–1846) rule over what was to become the U.S. Southwest, the governments made land grants to various individuals and communities. Under the Treaty of Guadalupe Hidalgo (1848), which ended the Mexican–American War, the United States obtained these territories, and in Article VIII guaranteed the rights of Mexican and former Mexican citizens to their property. However, the U.S. Senate in ratifying the treaty eliminated Article 10, which stated that the U.S. government would honor and guarantee all land grants awarded in lands ceded to the United States to citizens of Spain and Mexico by those respective governments. Thus land grants were subject to being proved. In ...
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Cerro Colorado, Arizona
Cerro Colorado is a ghost town in southern Pima County, Arizona. The town is located off Arivaca Road, near Arivaca, and is best known for the massacre of mining employees by Mexican outlaws and buried treasure. History Cerro Colorado was established around 1855 by Charles D. Poston, who owned the Sonora Exploring & Mining Company in Tubac, Arizona. The most prosperous mine in the area was the Heintzelman Mine, named after Major General Samuel P. Heintzelman, who was the first president of the mining company and later grew famous during the American Civil War. The post office was established on April 17, 1879, and closed on April 15, 1911. In 1861, fifteen Mexican and Native American men were killed after being buried alive in their shaft when the roof caved in. The men were deep within the shaft so no rescue was possible or attempted. This frightened the Mexican employees, who felt the mine was haunted, so they left and went home to Sonora. Several German and American min ...
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Charles Poston
Charles Debrille Poston (April 20, 1825 – June 24, 1902) was an American explorer, prospector, author, politician, and civil servant. He is referred to as the "Father of Arizona" due to his efforts lobbying for creation of the territory. Poston was also Arizona Territory's first Delegate to the U.S. House of Representatives. Background Poston was born near Elizabethtown, Kentucky, to Temple and Judith Debrille Poston. His father was a printer and he served as a printer's devil. Poston was orphaned at the age of twelve, and was apprenticed to the local county clerk, Samuel Haycraft. Following his apprenticeship, he moved to Nashville, Tennessee, where he clerked for the Tennessee Supreme Court while reading law. Poston married Haycraft's daughter, Margaret, in November 1849 and the couple had a daughter, Sarah Lee Poston, who reached adulthood. Charles Poston was listed in the 1850 census as owning at least one slave. Margaret Poston became paralyzed on February 12, ...
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Land Grant
A land grant is a gift of real estate—land or its use privileges—made by a government or other authority as an incentive, means of enabling works, or as a reward for services to an individual, especially in return for military service. Grants of land are also awarded to individuals and companies as incentives to develop unused land in relatively unpopulated countries; the process of awarding land grants are not limited to the countries named below. The United States historically gave out numerous land grants as homesteads to individuals desiring to make a farm. The American Industrial Revolution was guided by many supportive acts of legislatures (for example, the Main Line of Public Works legislation of 1863) promoting commerce or transportation infrastructure development by private companies, such as the Cumberland Road turnpike, the Lehigh Canal, the Schuylkill Canal and the many railroads that tied the young United States together. Ancient Rome Roman soldiers were giv ...
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