1.
Heptagon
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In geometry, a heptagon is a seven-sided polygon or 7-gon. The heptagon is also referred to as the septagon, using sept- together with the Greek suffix -agon meaning angle. A regular heptagon, in all sides and all angles are equal, has internal angles of 5π/7 radians. The area of a regular heptagon of side length a is given by, the apothem is half the cotangent of π /7, and the area of each of the 14 small triangles is one-fourth of the apothem. This expression cannot be rewritten without complex components, since the indicated cubic function is casus irreducibilis. As 7 is a Pierpont prime but not a Fermat prime and this type of construction is called a neusis construction. It is also constructible with compass, straightedge and angle trisector, the impossibility of straightedge and compass construction follows from the observation that 2 cos 2 π7 ≈1.247 is a zero of the irreducible cubic x3 + x2 − 2x −1. Consequently, this polynomial is the polynomial of 2cos, whereas the degree of the minimal polynomial for a constructible number must be a power of 2. An approximation for practical use with an error of about 0. 2% is shown in the drawing and it is attributed to Albrecht Dürer. Let A lie on the circumference of the circumcircle, then B D =12 B C gives an approximation for the edge of the heptagon. Example to illustrate the error, At a circumscribed circle radius r =1 m, since 7 is a prime number there is one subgroup with dihedral symmetry, Dih1, and 2 cyclic group symmetries, Z7, and Z1. These 4 symmetries can be seen in 4 distinct symmetries on the heptagon, john Conway labels these by a letter and group order. Full symmetry of the form is r14 and no symmetry is labeled a1. The dihedral symmetries are divided depending on whether they pass through vertices or edges, cyclic symmetries in the middle column are labeled as g for their central gyration orders. Each subgroup symmetry allows one or more degrees of freedom for irregular forms, only the g7 subgroup has no degrees of freedom but can seen as directed edges. However, no algebraic expressions with purely real terms exist for the solutions of this equation, because it is an example of casus irreducibilis. A heptagonal triangle has vertices coinciding with the first, second, and fourth vertices of a regular heptagon and angles π /7,2 π /7, thus its sides coincide with one side and two particular diagonals of the regular heptagon. Two kinds of star heptagons can be constructed from regular heptagons, labeled by Schläfli symbols, blue, and green star heptagons inside a red heptagon
2.
ISO 4217
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The ISO4217 code list is used in banking and business globally. ISO4217 codes are used on tickets and international train tickets to remove any ambiguity about the price. The first two letters of the code are the two letters of the ISO 3166-1 alpha-2 country codes and the third is usually the initial of the currency itself, so Japans currency code is JPY—JP for Japan and Y for yen. This eliminates the problem caused by the dollar, franc, peso and pound being used in dozens of different countries. Also, if a currency is revalued, the currency codes last letter is changed to distinguish it from the old currency. Other changes can be seen, however, the Russian ruble, for example, changed from RUR to RUB and these currency units are denominated as one troy ounce of the specified metal as opposed to USD1 or EUR1. The code XTS is reserved for use in testing, the code XXX is used to denote a transaction involving no currency. There are also codes specifying certain monetary instruments used in international finance, the codes for most supranational currencies, such as the East Caribbean dollar, the CFP franc, the CFA franc BEAC and the CFA franc BCEAO. The predecessor to the euro, the European Currency Unit, had the code XEU, the use of an initial letter X for these purposes is facilitated by the ISO3166 rule that no official country code beginning with X will ever be assigned. Because of this rule ISO4217 can use X codes without risk of clashing with a country code. ISO3166 country codes beginning with X are used for private custom use, consequently, ISO4217 can use X codes for non-country-specific currencies without risk of clashing with future country codes. The inclusion of EU in the ISO 3166-1 reserved codes list, the ISO4217 standard includes a crude mechanism for expressing the relationship between a major currency unit and its corresponding minor currency unit. This mechanism is called the exponent and assumes a base of 10. For example, USD is equal to 100 of its currency unit the cent. So the USD has exponent 2, the code JPY is given the exponent 0, because its minor unit, the sen, although nominally valued at 1/100 of a yen, is of such negligible value that it is no longer used. Usually, as with the USD, the currency unit has a value that is 1/100 of the major unit, but in some cases 1/1000 is used. Mauritania does not use a decimal division of units, setting 1 ouguiya equal to 5 khoums, some currencies do not have any minor currency unit at all and these are given an exponent of 0, as with currencies whose minor units are unused due to negligible value. There is also a code number assigned to each currency
3.
Cent (currency)
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In many national currencies, the cent, commonly represented by the cent sign is a monetary unit that equals 1⁄100 of the basic monetary unit. Etymologically, the word cent derives from the Latin word centum meaning hundred, cent also refers to a coin worth one cent. In the United States and Canada, the 1¢ coin is known by the nickname penny, alluding to the British coin. In Ireland the 1c coin is sometimes known as a penny in reference to the Irish penny. A cent is commonly represented by the cent sign, a letter c crossed by a diagonal stroke or a vertical line, ¢, or a simple c. Cent amounts from 1 cent to 99 cents can be represented as one or two digits followed by the abbreviation, or as a subdivision of the base unit. The cent sign has not survived the changeover from typewriters to computer keyboards, for the US International keyboard, <Right Alt> <Shift> c. On Macintosh systems, hold ⌥ Option and press 4 on the number row, on Unix/Linux systems with a compose key, Compose+|+C is a typical sequence. The cent sign has Unicode code point, U+00A2 ¢ cent sign, usage of the cent symbol varies from one currency to another. In the United States, Canada and Mexico, the usage ¢ is more common, while in Australia, New Zealand and the eurozone, in South Africa and Ireland, only the c is used. When written in English, the cent sign follows the amount, in contrast with a currency symbol. For example, 2¢ and $0.02, or 2c, greek coins have ΛΕΠΤΟ on the obverse of the one-cent coin and ΛΕΠΤΑ on the obverse of the others. Actual usage varies depending on language, South Korean Won no fractional denomination in circulation, formerly divided into 100 jeon
4.
Currency symbol
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A currency symbol is a graphic symbol used as a shorthand for a currencys name, especially in reference to amounts of money. The European Commission considers the global recognition of the euro sign € part of its success, in 2009, India launched a public competition to replace the ₨ ligature it shared with neighbouring countries. It finalised its new symbol, ₹ on 15 July 2010. It is a blend of the Latin letter R with the Devanagari letter र, when writing currency amounts the location of the symbol varies by currency. Many currencies in the English-speaking world and Latin America, place it before the amount, the Cape Verdean escudo places its symbol in the decimal separator position. The usage of many European countries, such as France, Germany, the decimal separator also follows local countries standards. For instance, the United Kingdom often uses an interpunct as the point on price stickers. Commas or decimal points are common separators used in other countries, see decimal separator for information on international standards. Older currency symbols have evolved slowly, often from previous currencies, the dollar and peso symbols originated from the mark employed to denote the Spanish real de a ocho, whereas the pound and lira symbols evolved from an L standing for libra, a Roman pound of silver. Newly invented currencies and currencies adopting new symbols have symbolism closer to their adopter, the added center bar in the real sign is meant to symbolize stability. The new Indian rupee symbol, ₹, is a combination of Latin. There are also considerations, such as the perception of the business community. For a new symbol to be used, software to render it needs to be promulgated, the EU was criticized for not considering how the euro symbol would need to be customized to work in different fonts. The original design was exceptionally wide. These two factors have led to most typefaces employing customized, font-specific versions, usually with reduced width, List of currencies List of circulating currencies Currency Symbols
5.
Barbados
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Barbados is a sovereign island country in the Lesser Antilles, in the Americas. It is 34 kilometres in length and up to 23 km in width, Barbados is outside of the principal Atlantic hurricane belt. Inhabited by Kalinago people since the 13th century, and prior to that by other Amerindians, Barbados was visited by Spanish navigators in the late 15th century and it first appeared in a Spanish map in 1511. The Portuguese visited the island in 1536, but they left it unclaimed, an English ship, the Olive Blossom, arrived in Barbados in 1625, its men took possession of it in the name of King James I. In 1627, the first permanent settlers arrived from England, and it became an English, in 1966, Barbados became an independent state and Commonwealth realm with the British Monarch as hereditary head of state. It has a population of 280,121 people, predominantly of African descent, despite being classified as an Atlantic island, Barbados is considered to be a part of the Caribbean, where it is ranked as a leading tourist destination. Forty percent of the come from the UK, with the US. In 2014, Transparency Internationals Corruption Perceptions Index ranked Barbados joint second in the Americas, the name Barbados is either the Portuguese word Barbados or the Spanish equivalent los Barbados, both meaning the bearded ones. In 1519, a map produced by the Genoese mapmaker Visconte Maggiolo showed and named Barbados in its correct position, furthermore, the island of Barbuda in the Leewards is very similar in name and was once named Las Barbudas by the Spanish. It is uncertain which European nation arrived first in Barbados, one lesser known source points to earlier-revealed works predating contemporary sources indicating it could have been the Spanish. Others believe the Portuguese, en route to Brazil, were the first Europeans to come upon the island, colloquially Barbadians refer to their home island as Bim or other nicknames associated with Barbados includes Bimshire. The origin is uncertain but several theories exist, the name could have arisen due to the relatively large percentage of enslaved Igbo people from modern-day southeastern Nigeria arriving in Barbados in the 18th century. The words Bim and Bimshire are recorded in the Oxford English Dictionary, another possible source for Bim is reported to be in the Agricultural Reporter of 25 April 1868, where the Rev. N. Greenidge suggested the listing of Bimshire as a county of England. Expressly named were Wiltshire, Hampshire, Berkshire and Bimshire, lastly, in the Daily Argosy of 1652 there is a reference to Bim as a possible corruption of Byam, the name of a Royalist leader against the Parliamentarians. That source suggested the followers of Byam became known as Bims, amerindian settlement of Barbados dates to about the 4th to 7th centuries AD, by a group known as the Saladoid-Barrancoid. In the 13th century, the Kalinago arrived from South America, the Spanish and Portuguese briefly claimed Barbados from the late 16th to the 17th centuries. The Arawaks are believed to have fled to neighbouring islands, apart from possibly displacing the Caribs, the Spanish and Portuguese made little impact and left the island uninhabited. Some Arawaks migrated from British Guiana in the 19th century and continue to live in Barbados, during the Cromwellian era this included a large number of prisoners-of-war, vagrants and people who were illicitly kidnapped, who were forcibly transported to the island and sold as servants
6.
Central bank
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A central bank, reserve bank, or monetary authority is an institution that manages a states currency, money supply, and interest rates. Central banks also usually oversee the commercial banking system of their respective countries, Central banks in most developed nations are institutionally designed to be independent from political interference. Still, limited control by the executive and legislative bodies usually exists, prior to the 17th century most money was commodity money, typically gold or silver. However, promises to pay were widely circulated and accepted as value at least five hundred years earlier in both Europe and Asia. The Song dynasty was the first to issue generally circulating paper currency, in 1455, in an effort to control inflation, the succeeding Ming Dynasty ended the use of paper money and closed much of Chinese trade. The Bank of Amsterdam, established in the Dutch Republic in 1609, is considered to be the forerunner to modern central banks. The Wisselbanks innovations helped lay the foundations for the birth and development of the banking system that now plays a vital role in the worlds economy. Along with a number of local banks, it performed many functions of a central banking system. Lucien Gillard calls it the European guilder, and Adam Smith devotes many pages to explaining how the bank guilder works, the model of the Wisselbank as a state bank was adapted throughout Europe, including the Bank of Sweden and the Bank of England. Established by Dutch-Latvian Johan Palmstruch in 1668, Sveriges Riksbank is often considered by many as the worlds oldest central bank, the lenders would give the government cash and also issue notes against the government bonds, which could be lent again. A Royal Charter was granted on 27 July through the passage of the Tonnage Act 1694, the bank was given exclusive possession of the governments balances, and was the only limited-liability corporation allowed to issue banknotes. The £1. 2M was raised in 12 days, half of this was used to rebuild the Navy and these modern central banking functions evolved slowly through the 18th and 19th centuries. The currency crisis of 1797, caused by panicked depositors withdrawing from the Bank led to the government suspending convertibility of notes into specie payment. The bank was accused by the bullionists of causing the exchange rate to fall from over issuing banknotes. Nevertheless, it was clear that the Bank was being treated as an organ of the state, henry Thornton, a merchant banker and monetary theorist has been described as the father of the modern central bank. An opponent of the real bills doctrine, he was a defender of the bullionist position, thorntons process of monetary expansion anticipated the theories of Knut Wicksell regarding the cumulative process which restates the Quantity Theory in a theoretically coherent form. Until the mid-nineteenth century, commercial banks were able to issue their own banknotes, many consider the origins of the central bank to lie with the passage of the Bank Charter Act of 1844. Under this law, authorisation to issue new banknotes was restricted to the Bank of England, at the same time, the Bank of England was restricted to issue new banknotes only if they were 100% backed by gold or up to £14 million in government debt
7.
Central Bank of Barbados
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The Central Bank of Barbados is the national monetary authority responsible for providing advice to government of Barbados on banking and other financial and monetary matters. The Central Bank of Barbados, was established by Act of parliament on 2 May 1972, prior to the establishment of CBB, Barbados monetary policies were governed through its membership in the Eastern Caribbean Currency Authority. The Central Bank operates as the issuing authority for Barbadian currency. The name of the Central Banks building is the Tom Adams Financial Centre, as part of the complex, there is a 491-seat theatre/auditorium known as the Frank Collymore Hall. The building was constructed between 1982 and 1986 and it was opened September 18th 1986, the Global Competitiveness Report for 2008-09 ranked the soundness of Barbadoss commercial banks as 21st out of 134 global jurisdictions assessed. At its inception the Central Bank of Barbados had certain objectives, the Barbadian economy is reviewed regularly by several notable Wall Street investment firms including, PricewaterhouseCoopers, Standard & Poors, and Moodys. The head of the Central Bank is the Governor, who is appointed by the Banks Board of Directors, the current Governor of the Central Bank of Barbados is Dr Delisle Worrell as of November 2009
8.
Fixed exchange-rate system
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There are benefits and risks to using a fixed exchange rate. In doing so, the rate between the currency and its peg does not change based on market conditions, the way floating currencies do. A fixed exchange-rate system can also be used as a means to control the behavior of a currency, however, in doing so, the pegged currency is then controlled by its reference value. In other words, a currency is dependent on its reference value to dictate how its current worth is defined at any given time. The central bank provides the assets and/or the foreign currency or currencies which are needed in order to any payments imbalances. In the 21st century, the associated with large economies typically do not fix or peg exchange rates to other currencies. The last large economy to use a fixed exchange system was the Peoples Republic of China which, in July 2005. The European Exchange Rate Mechanism is also used on a basis to establish a final conversion rate against the Euro from the local currencies of countries joining the Eurozone. The gold standard or gold standard of fixed exchange rates prevailed from about 1870 to 1914. The period between the two wars was transitory, with the Bretton Woods system emerging as the new fixed exchange rate regime in the aftermath of World War II. It was formed with an intent to rebuild war-ravaged nations after World War II through a series of currency stabilization programs, the early 1970s saw the breakdown of the system and its replacement by a mixture of fluctuating and fixed exchange rates. Timeline of the exchange rate system, The earliest establishment of a gold standard was in the United Kingdom in 1821 followed by Australia in 1852. Under this system, the value of all currencies was denominated in terms of gold with central banks ready to buy. Each central bank maintained gold reserves as their official reserve asset, for example, during the “classical” gold standard period, the U. S. dollar was defined as 0.048 troy oz. of pure gold. Following the Second World War, the Bretton Woods system replaced gold with the U. S. dollar as the reserve asset. The regime intended to combine binding legal obligations with multilateral decision-making through the International Monetary Fund, the rules of this system were set forth in the articles of agreement of the IMF and the International Bank for Reconstruction and Development. S. Dollar and to exchange rates within 1% of parity by intervening in their foreign exchange markets. In December 1971, the Smithsonian Agreement paved the way for the increase in the value of the price of gold from US$35.50 to US$38 an ounce
9.
United States dollar
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The United States dollar is the official currency of the United States and its insular territories per the United States Constitution. It is divided into 100 smaller cent units, the circulating paper money consists of Federal Reserve Notes that are denominated in United States dollars. The U. S. dollar was originally commodity money of silver as enacted by the Coinage Act of 1792 which determined the dollar to be 371 4/16 grain pure or 416 grain standard silver, the currency most used in international transactions, it is the worlds primary reserve currency. Several countries use it as their currency, and in many others it is the de facto currency. Besides the United States, it is used as the sole currency in two British Overseas Territories in the Caribbean, the British Virgin Islands and Turks and Caicos Islands. A few countries use the Federal Reserve Notes for paper money, while the country mints its own coins, or also accepts U. S. coins that can be used as payment in U. S. dollars. After Nixon shock of 1971, USD became fiat currency, Article I, Section 8 of the U. S. Constitution provides that the Congress has the power To coin money, laws implementing this power are currently codified at 31 U. S. C. Section 5112 prescribes the forms in which the United States dollars should be issued and these coins are both designated in Section 5112 as legal tender in payment of debts. The Sacagawea dollar is one example of the copper alloy dollar, the pure silver dollar is known as the American Silver Eagle. Section 5112 also provides for the minting and issuance of other coins and these other coins are more fully described in Coins of the United States dollar. The Constitution provides that a regular Statement and Account of the Receipts and that provision of the Constitution is made specific by Section 331 of Title 31 of the United States Code. The sums of money reported in the Statements are currently being expressed in U. S. dollars, the U. S. dollar may therefore be described as the unit of account of the United States. The word dollar is one of the words in the first paragraph of Section 9 of Article I of the Constitution, there, dollars is a reference to the Spanish milled dollar, a coin that had a monetary value of 8 Spanish units of currency, or reales. In 1792 the U. S. Congress passed a Coinage Act, Section 20 of the act provided, That the money of account of the United States shall be expressed in dollars, or units. And that all accounts in the offices and all proceedings in the courts of the United States shall be kept and had in conformity to this regulation. In other words, this act designated the United States dollar as the unit of currency of the United States, unlike the Spanish milled dollar the U. S. dollar is based upon a decimal system of values. Both one-dollar coins and notes are produced today, although the form is significantly more common
10.
Standard & Poor's
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Standard & Poors Financial Services LLC is an American financial services company. It is a division of S&P Global that publishes research and analysis on stocks, bonds. S&P is known for its stock market such as the U. S. -based S&P500, the Canadian S&P/TSX. S&P is considered one of the Big Three credit-rating agencies, which also include Moodys Investors Service and its head office is located on 55 Water Street in Lower Manhattan, New York City. The company traces its history back to 1860, with the publication by Henry Varnum Poor of History of Railroads and this book compiled comprehensive information about the financial and operational state of U. S. railroad companies. In 1868, Henry Varnum Poor established H. V. and H. W, Poor Co. with his son, Henry William Poor, and published two annually updated hardback guidebooks, Poors Manual of the Railroads of the United States and Poors Directory of Railway Officials. In 1906, Luther Lee Blake founded the Standard Statistics Bureau, instead of an annually published book, Standard Statistics would use 5 ×7 cards, allowing for more frequent updates. In 1941, Poors Publishing and Standard Statistics merged to become Standard & Poors Corp, in 1966, the company was acquired by The McGraw-Hill Companies, extending McGraw-Hill into the field of financial information services. As a credit-rating agency, the company issues credit ratings for the debt of public and private companies and it is one of several CRAs that have been designated a nationally recognized statistical rating organization by the U. S. Securities and Exchange Commission. S&P issues both short-term and long-term credit ratings, below is a partial list, see S&Ps website for more information. The company rates borrowers on a scale from AAA to D, intermediate ratings are offered at each level between AA and CCC. For some borrowers, the company may also offer guidance as to whether it is likely to be upgraded, downgraded or uncertain, investment Grade AAA, An obligor rated AAA has extremely strong capacity to meet its financial commitments. AAA is the highest issuer credit rating assigned by Standard & Poors, AA, An obligor rated AA has very strong capacity to meet its financial commitments. It differs from the highest-rated obligors only to a small degree, a+, equivalent to A1 A, equivalent to A2 BBB, An obligor rated BBB has adequate capacity to meet its financial commitments. However, adverse conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitments. Non-Investment Grade BB, An obligor rated BB is less vulnerable in the term than other lower-rated obligors. B, An obligor rated B is more vulnerable than the obligors rated BB, adverse business, financial, or economic conditions will likely impair the obligors capacity or willingness to meet its financial commitments. CCC, An obligor rated CCC is currently vulnerable, and is dependent upon favorable business, financial, CC, An obligor rated CC is currently highly vulnerable
11.
Eastern Caribbean
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It also performs the role of spreading responsibility and liability in the event of natural disaster, such as a hurricane. The main organ of the OECS, the Commission, is based in the city of Castries. The OECS was created on 18 June 1981, with the Treaty of Basseterre, the OECS is the successor of the Leewards Islands political organisation known as the West Indies Associated States. One prominent aspect of the modern day OECS economic bloc has been the accelerated pace of integration among its member states. All of the members-states of the OECS are either Full or Associate members of the Caribbean Community and were among the second batch of countries that joined the CARICOM Single Market, Martinique is currently negotiating to become an associate member of the Caribbean Community as well. The OECS currently has ten members, spread across the Eastern Caribbean, together, they form a near-continuous archipelago across the Leeward Islands and Windward Islands. The two most geographically isolated members, Anguilla and the British Virgin Islands, have associate membership of the organisation. As a result, diplomatic missions of the OECS do not represent these two states, nor do OECS diplomatic missions represent Martinique, the third associate member. For the purposes of discussing the membership, they are treated as equals of the full members. Six of the members were formerly colonies of the United Kingdom, three others, Anguilla, the British Virgin Islands, and Montserrat remain overseas territories of the UK while Martinique continues to be an overseas department and region of France. Eight of the ten members consider Queen Elizabeth II to be sovereign, as well, the Queens likeness appears on the East Caribbean dollars coins and banknotes. All seven full members are also the members of the OECS. The British Virgin Islands was the first associate member, joining on 22 November 1984 and Anguilla was the second, on 1 February 2015, it was announced that Martinique would become a new associate member of the OECS on 4 February 2015. The occasion will be marked by a ceremony in Martiniques capital. It also follows the unanimous vote in favour of Martiniques associate membership of the OECS in Martiniques Regional Assembly in November 2013, OECS Director General, Dr. Martinique officially acceded as an associate member on 4 February 2015. Didacus Jules, Director General of OECS, said that the OECS was fortunate that Martinique is now an Associate Member, the table lists full members in alphabetical order and associate members in chronological order of their joining the OECS. Although almost all of the current full and associate members are past or present British dependencies, the first was the United States Virgin Islands, which applied for associate membership in February 1990 and requested that US Federal Government allow the territory to participate as such. At that time, it was felt by the US government that it was not a time to make such a request
12.
Spanish dollar
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Its purpose was to correspond to the German thaler. The Spanish dollar was used by many countries as the first international currency because of its uniformity in standard. Some countries countersigned the Spanish dollar so it could be used as their local currency, the Spanish dollar was the coin upon which the original United States dollar was based, and it remained legal tender in the United States until the Coinage Act of 1857. Because it was used in Europe, the Americas. Diverse theories link the origin of the $ symbol to the columns, millions of Spanish dollars were minted over the course of several centuries. They were among the most widely circulating coins of the period in the Americas. In the 16th century, Count Hieronymus Schlick of Bohemia began minting coins known as Joachimsthalers, named for Joachimsthal, the Joachimsthalers weighed 451 Troy grains of silver. So successful were these coins that similar thalers were minted in Burgundy, the Burgundian Cross Thaler depicted the Cross of Burgundy and was prevalent in the Burgundian Netherlands that were revolting against the Spanish king and Duke of Burgundy Philip II. After 1575, the Dutch revolting provinces replaced the currency with a daalder depicting a lion, specifically to facilitate export trade, the leeuwendaalder was authorized to contain 427.16 grains of.750 fine silver, lighter than the large denomination coins then in circulation. Clearly it was advantageous for a Dutch merchant to pay a foreign debt in leeuwendaalders rather than in other heavier. Thus, the leeuwendaalder or lion dollar became the coin of choice for foreign trade and it became popular in the Middle East, and colonies in the east and west. They also circulated throughout the English colonies during the Seventeenth and early Eighteenth centuries, from New Netherland the lion dollar spread to all thirteen colonies in the west. After the introduction of the Guldengroschen in Austria in 1486, the concept of a silver coin with high purity eventually spread throughout the rest of Europe. Monetary reform in Spain brought about the introduction of an 8-real coin in 1497, in 1537 the Spanish escudo gold coin was introduced, which was worth 16 reales. The later Gold Doubloon was worth 32 reales or 2 escudos and it is this divisibility into 8 which caused the silver coins to be named pieces of eight. In the following centuries, the coin was minted with different designs at various mints in Spain. In the 19th century, the denomination was changed to 20 reales. Spains adoption of the peseta in 1869 and its joining the Latin Monetary Union meant the end of the last vestiges of the Spanish dollar in Spain itself
13.
Mexican peso
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The Mexican peso is the currency of Mexico. Modern peso and dollar currencies have a origin in the 15th–19th century Spanish dollar, most continuing to use its sign. The Mexican peso is the 8th most traded currency in the world, the third most traded currency originating from the Americas, the current ISO4217 code for the peso is MXN, prior to the 1993 revaluation, the code MXP was used. The peso is subdivided into 100 centavos, represented by ¢, as of March 31,2017, the pesos exchange rate was $19.94 per Euro and $18.71 per U. S. dollar. The name was used in reference to pesos oro or pesos plata. The Spanish word peso means weight, the peso was originally the name of the eight-real coins issued in Mexico by Spain. These were the so-called Spanish dollars or pieces of eight in wide circulation in the Americas, in 1863, the first issue was made of coins denominated in centavos, worth one hundredth of the peso. This was followed in 1866 by coins denominated one peso, coins denominated in reales continued to be issued until 1897. In 1905, the content of the peso was reduced by 49. 3%. However, from 1918 onward, the weight and fineness of all the coins declined, until 1977. On January 1,1993 the Bank of Mexico introduced a new currency, one new peso, or N$1.00, was equal to 1000 of the obsolete MXP pesos. The ISO4217 code, however, remained unchanged as MXN, thanks to the stability of the Mexican economy and the growth in foreign investment, the Mexican peso is now among the 15 most traded currency units in recent years. The first coins of the currency were 1 centavo pieces minted in 1863. Emperor Maximilian, ruler of the Second Mexican Empire from 1864–1867 and his portrait was on the obverse, with the legend Maximiliano Emperador, the reverse shows the imperial arms and the legends Imperio Mexicano and 1 Peso and the date. They were struck from 1866 to 1867, the New Mexican republic continued to strike the 8 reales piece, but also began minting coins denominated in centavos and pesos. In addition to copper 1 centavo coins, silver coins of 5,10,25 and 50 centavos and 1 peso were introduced between 1867 and 1869, gold 1, 2½,5,10 and 20-peso coins were introduced in 1870. The obverses featured the Mexican eagle and the legend Republica Mexicana, the reverses of the larger coins showed a pair of scales, those of the smaller coins, the denomination. One-peso coins were made from 1865 to 1873, when 8 reales coins resumed production, in 1882, cupro-nickel 1,2 and 5 centavos coins were issued but they were only minted for two years
14.
Pound sterling
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It is subdivided into 100 pence. A number of nations that do not use sterling also have called the pound. At various times, the sterling was commodity money or bank notes backed by silver or gold. The pound sterling is the worlds oldest currency still in use, the British Crown dependencies of Guernsey and Jersey produce their own local issues of sterling, the Guernsey pound and the Jersey pound. The pound sterling is also used in the Isle of Man, Gibraltar, the Bank of England is the central bank for the pound sterling, issuing its own coins and banknotes, and regulating issuance of banknotes by private banks in Scotland and Northern Ireland. Sterling is the fourth most-traded currency in the exchange market, after the United States dollar, the euro. Together with those three currencies it forms the basket of currencies which calculate the value of IMF special drawing rights, Sterling is also the third most-held reserve currency in global reserves. The full, official name, pound sterling, is used mainly in formal contexts, otherwise the term pound is normally used. The abbreviations ster. or stg. are sometimes used, the term British pound is commonly used in less formal contexts, although it is not an official name of the currency. The pound sterling is also referred to as cable amongst forex traders, the origins of this term are attributed to the fact that in the 1800s, the dollar/pound sterling exchange rate was transmitted via transatlantic cable. Forex brokers are sometimes referred to as cable dealers, as another established source notes, the compound expression was then derived, silver coins known as sterlings were issued in the Saxon kingdoms,240 of them being minted from a pound of silver. Hence, large payments came to be reckoned in pounds of sterlings, in 1260, Henry III granted them a charter of protection. And because the Leagues money was not frequently debased like that of England, English traders stipulated to be paid in pounds of the Easterlings, and land for their Kontor, the Steelyard of London, which by the 1340s was also called Easterlings Hall, or Esterlingeshalle. For further discussion of the etymology of sterling, see sterling silver, the currency sign for the pound sign is £, which is usually written with a single cross-bar, though a version with a double cross-bar is also sometimes seen. The ISO4217 currency code is GBP, occasionally, the abbreviation UKP is used but this is non-standard because the ISO3166 country code for the United Kingdom is GB. The Crown dependencies use their own codes, GGP, JEP, stocks are often traded in pence, so traders may refer to pence sterling, GBX, when listing stock prices. A common slang term for the pound sterling or pound is quid, since decimalisation in 1971, the pound has been divided into 100 pence. The symbol for the penny is p, hence an amount such as 50p properly pronounced fifty pence is more colloquially, quite often, pronounced fifty pee /fɪfti, pi and this also helped to distinguish between new and old pence amounts during the changeover to the decimal system
15.
Shilling
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The shilling is a unit of currency formerly used in the United Kingdom, Australia, United States, and other British Commonwealth countries. The word shilling comes from scilling, a term that dates back to Anglo-Saxon times, and from there back to Old Norse. Slang terms for the old shilling coins include bob and hog, while the derivation of bob is uncertain, John Camden Hotten in his 1864 Slang Dictionary says the original version was bobstick and wonders if it is connected with Sir Robert Walpole. One abbreviation for shilling is s, often it was represented by a solidus symbol, which may have originally stood for a long s or ſ, thus 1/9 would be one shilling and ninepence. A price with no pence was sometimes written with a slash, the solidus symbol is still used for the shilling currency unit in former British East Africa, rather than sh. During the Great Recoinage of 1816, the mint was instructed to coin one troy pound of silver into 66 shillings. This set the weight of the shilling, and its subsequent decimal replacement 5 new pence coin, at 87.2727 grains or 5.655 grams from 1816 until 1990, in the past, the English world has had various myths about the shilling. One myth was that it was deemed to be the value of a cow in Kent or a sheep elsewhere, a shilling was a coin used in England from the reign of Henry VII. The term shilling was in use in Scotland from early medieval times, the common currency created in 1707 by Article 16 of the Articles of Union continued in use until decimalisation in 1971. In the traditional pounds, shillings and pence system, there were 20 shillings per pound and 12 pence per shilling, three coins denominated in multiple shillings were also in circulation at this time. In the Irish Free State and Republic of Ireland the shilling was issued as scilling in Irish and it was worth 1/20th of an Irish pound, and was interchangeable at the same value to the British coin, which continued to be used in Northern Ireland. The coin featured a bull on the reverse side, the first minting, from 1928 until 1941, contained 75% silver, more than the equivalent British coin. The original Irish shilling coin ) was withdrawn from circulation on 1 January 1993, Australian shillings, twenty of which made up one Australian pound, were first issued in 1910, with the Australian coat of arms on the reverse and King Edward VII on the face. The coat of arms design was retained through the reign of King George V until a new head design was introduced for the coins of King George VI. This design continued until the last year of issue in 1963, in 1966, Australias currency was decimalised and the shilling was replaced by a ten cent coin, where 10 shillings made up one Australian dollar. The slang term for a coin in Australia was deener. The slang term for a shilling as currency unit was bob, after 1966, shillings continued to circulate, as they were replaced by 10-cent coins of the same size and weight. New Zealand shillings, twenty of which made up one New Zealand pound, were first issued in 1933, in 1967, New Zealands currency was decimalised and the shilling was replaced by a ten cent coin of the same size and weight
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Penny
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A penny is a coin or a unit of currency in various countries. Borrowed from the Carolingian denarius, it is usually the smallest denomination within a currency system, presently, it is the formal name of the British penny and the informal name of one American cent as well as the informal Irish designation of 1 cent euro coin. It is the name of the cent unit of account in Canada. The name is used in reference to various historical currencies also derived from the Carolingian system, such as the French denier. It may also be used to refer to any similar smallest-denomination coin. The Carolingian penny was originally a. 940-fine silver coin weighing 1/240 pound, the British penny remained a silver coin until the expense of the Napoleonic Wars prompted the use of base metals in 1797. Despite the decimalization of currencies in the United States and, later, throughout the British Commonwealth, no penny is currently formally subdivided, although farthings, halfpennies, and half cents have previously been minted and the mill remains in use as a unit of account in some contexts. Penny is first attested in a 1394 Scots text, a variant of Old English peni, a development of numerous variations including pennig, penning, and pending. The etymology of the penny is uncertain, although cognates are common across almost all Germanic languages and suggest a base *pan-, *pann-. Recently, it has proposed that it may represent an early borrowing of Punic PN. Following decimalization, the British and Irish coins were marked new penny until 1982 and 1985, the regular plural pennies fell out of use in England from the 16th century, except in reference to coins considered individually. The informal name for the American cent seems to have spread from New York, in British English, prior to decimalization, values from two to eleven pence and of twenty pence are often written and spoken as a single word, as twopence, threepence, &c. Where a single coin represented a number of pence, it was treated as a single noun, thus, a threepence would be single coin of that value whereas three pence would be its value and three pennies would be three penny coins. In British English, divisions of a penny were added to such combinations without a conjunction, as sixpence-farthing, adjectival use of such coins used the ending -penny, as sixpenny. The British abbreviation d. derived from the Latin denarius and it followed the amount after a space. It has been replaced since decimalization by p, usually written without a space or period, from this abbreviation, it is common to speak of pennies and values in pence as p. In North America, it is common to abbreviate cents with the currency symbol ¢, elsewhere, it is usually written with a simple c. The medieval silver penny was modeled on similar coins in antiquity, such as the Greek drachma, the Carthaginian shekel, forms of these seem to have reached as far as Norway and Sweden
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Eastern Caribbean dollar
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The Eastern Caribbean dollar is the currency of all seven full members and one associate member of the Organisation of Eastern Caribbean States. The EC$ is subdivided into 100 cents and it has been pegged to the United States dollar since July 7,1976, and the exchange rate is US$1 = EC$2.70. Six of the using the EC$ are independent states, Antigua and Barbuda, Dominica, Grenada, Saint Kitts and Nevis, Saint Lucia, and Saint Vincent. The other two are British overseas territories, Anguilla and Montserrat and these states are all members of the Eastern Caribbean Currency Union. The only OECS associate member not using the Eastern Caribbean dollar as their currency is the British Virgin Islands. The British Virgin Islands were always problematic for currency purposes due to their proximity to the Danish West Indies which became the US Virgin Islands in 1917. Officially, the British Virgin Islands used to use sterling, but in practice the situation was a lot more complicated and involved the circulation of Francs, British Guiana and Barbados had previously been members of this currency union but withdrew in 1966 and 1972 respectively. Trinidad and Tobago had been a member of the earlier British West Indies currency union, the combined population of the EC$ area is about 613,000, which is comparable to Montenegro or the American capital city of Washington, D. C. The combined GDP is 5.46 billion US dollars, which is comparable to Bermuda, Queen Elizabeth II appears on the banknotes and also on the obverse of the coins. She is the head of state of all the states and territories using the EC$, Dominica is nevertheless a member of the Commonwealth of Nations which recognises Queen Elizabeth II as Head of the Commonwealth. Queen Annes proclamation of 1704 introduced the standard to the British West Indies. Nevertheless, silver pieces of eight continued to form an important portion of the circulating coinage right up until the late 1870s, in 1822, the British government coined 1/4, 1/8, and 1/16 fractional Anchor dollars for use in Mauritius and the British West Indies. A few years later copper fractional dollars were coined for Mauritius, Sierra Leone, the first move to introduce British sterling silver coinage to the colonies came with an imperial order-in-council dated 1825. This move was inspired by a number of factors, the United Kingdom was now operating a very successful gold standard in relation to the gold sovereign that was introduced in 1816, and there was a desire to extend this system to the colonies. In addition to this, there was the fact that the supply of Spanish dollars had been cut off as a result of the revolutions in Latin America where most of the Spanish dollars were minted, the last Spanish Dollar was in fact minted at Potosi in 1825. There was now a growing desire to have a stable and steady supply of British shillings everywhere the British drum was beating. The 1825 order-in-council was largely a failure because it made sterling coinage legal tender at the unrealistic rating in relation to the Spanish dollar of $1 =4 shillings and 4 pence. The reality of the rating between the dollar and the pound was based on the content of the Spanish pieces of eight as compared to the gold content of the British gold sovereign
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Parliament of Barbados
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The Parliament of Barbados is the national legislature of Barbados. It is accorded legislative supremacy by Chapter V of the Constitution of Barbados, the Parliament is bicameral in composition and is formally made up of, Elizabeth II, Queen of Barbados, an appointed Senate, and an elected House of Assembly. Both houses sit in separate chambers in the Parliament Buildings, in the national capital Bridgetown in Saint Michael, the Senate is made up of twenty-one Senators and The Queen, while the House consists of thirty Members of Parliament in addition to the Honourable Speaker of the House. The Parliament of Barbados is originally patterned after the Parliament of England, so the structure, functions, sittings of both House and Senate are usually held once per month, with other meetings called as necessary. The House sits on Tuesdays beginning at 10, 30am, and are broadcast live on the radio station. Sittings of the Senate take place on Wednesdays, the Parliament of Barbados is the third oldest legislature in the Americas, and is among the oldest in the Commonwealth of Nations. The genesis of a legislature in Barbados was introduced by Governor Henry Hawley, creating a structure of governance to Barbados, the then unicameral Parliament originally was tasked with establishing a system of laws and was completely under the domination of the islands planter-class. The first meeting of the Barbados Assembly was held in 1639, the initial location known as the Sessions House which was situated in the Marlhill, which is now known as Spry Street. Built by Captain Henry Hawley, the building may have originally accommodated his Courts of Law, by 1653, the Assembly moved to the State House then located in Bridgetown area known as Cheapside. In 1668 the State House was destroyed by a fire started by an explosion of the Bridgetown military magazine. Over the next century, the elected officials assembled at various locations all over Bridgetown. The Roebuck Tavern located on Roebuck Street was an assembly point and was also owned by Henry Hawley. The movement of the Assembly among the various taverns in the town eventually presented an irony for the thriving colony, for many years the Barbados Assembly continued to meet in various places. In 1724 an Act was passed providing for a building for the Council and Assembly, Law Courts, the building located on Coleridge Street was completed in 1731-1732, yet the House of Assembly still often met at times at different private houses and taverns. The Parliament of Barbados in its current form was first introduced following the 1961 general elections, in 1963 the colonial era Legislative Council was disestablished. In its place came the Senate in 1964, as the years went by, governance in Barbados continued to change in structure until both of the present chambers assumed their present numbers. Parliament is empowered by Article 35 of the Constitution to make laws for the Peace, order, the next general election in Barbados is constitutionally due in 2018. According to the Constitution of Barbados elections can take no longer than every five years from the first sitting of Parliament
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Zinc
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Zinc is a chemical element with the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table, in some respects zinc is chemically similar to magnesium, both elements exhibit only one normal oxidation state, and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earths crust and has five stable isotopes, the most common zinc ore is sphalerite, a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States, Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century, the mines of Rajasthan have given definite evidence of zinc production going back to the 6th century BC. To date, the oldest evidence of pure zinc comes from Zawar, in Rajasthan, alchemists burned zinc in air to form what they called philosophers wool or white snow. The element was named by the alchemist Paracelsus after the German word Zinke. German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746, work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corrosion-resistant zinc plating of iron is the application for zinc. Other applications are in batteries, small non-structural castings. A variety of compounds are commonly used, such as zinc carbonate and zinc gluconate, zinc chloride, zinc pyrithione, zinc sulfide. Zinc is an essential mineral perceived by the public today as being of exceptional biologic and public health importance, Zinc deficiency affects about two billion people in the developing world and is associated with many diseases. In children, deficiency causes growth retardation, delayed sexual maturation, infection susceptibility, enzymes with a zinc atom in the reactive center are widespread in biochemistry, such as alcohol dehydrogenase in humans. Consumption of excess zinc can cause ataxia, lethargy and copper deficiency, Zinc is a bluish-white, lustrous, diamagnetic metal, though most common commercial grades of the metal have a dull finish.6 pm. The metal is hard and brittle at most temperatures but becomes malleable between 100 and 150 °C, above 210 °C, the metal becomes brittle again and can be pulverized by beating. Zinc is a conductor of electricity. For a metal, zinc has relatively low melting and boiling points, the melting point is the lowest of all the transition metals aside from mercury and cadmium. Many alloys contain zinc, including brass, Other metals long known to form binary alloys with zinc are aluminium, antimony, bismuth, gold, iron, lead, mercury, silver, tin, magnesium, cobalt, nickel, tellurium, and sodium
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Brass
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Brass is a metal alloy made of copper and zinc, the proportions of zinc and copper can be varied to create a range of brasses with varying properties. It is an alloy, atoms of the two constituents may replace each other within the same crystal structure. By comparison, bronze is principally an alloy of copper and tin, however, bronze and brass may also include small proportions of a range of other elements including arsenic, phosphorus, aluminium, manganese, and silicon. The term is applied to a variety of brasses. Modern practice in museums and archaeology increasingly avoids both terms for objects in favour of the all-embracing copper alloy. It is also used in zippers, Brass is often used in situations in which it is important that sparks not be struck, such as in fittings and tools used near flammable or explosive materials. Brass has higher malleability than bronze or zinc, the relatively low melting point of brass and its flow characteristics make it a relatively easy material to cast. By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard, the density of brass is 8.4 to 8.73 grams per cubic centimetre. Today, almost 90% of all alloys are recycled. Because brass is not ferromagnetic, it can be separated from ferrous scrap by passing the scrap near a powerful magnet, Brass scrap is collected and transported to the foundry where it is melted and recast into billets. Billets are heated and extruded into the form and size. The general softness of brass means that it can often be machined without the use of cutting fluid, aluminium makes brass stronger and more corrosion-resistant. Aluminium also causes a highly beneficial hard layer of oxide to be formed on the surface that is thin, transparent. Tin has an effect and finds its use especially in seawater applications. Combinations of iron, aluminium, silicon and manganese make brass wear and tear resistant, to enhance the machinability of brass, lead is often added in concentrations of around 2%. Since lead has a melting point than the other constituents of the brass. The pattern the globules form on the surface of the brass increases the available surface area which in turn affects the degree of leaching. In addition, cutting operations can smear the lead globules over the surface and these effects can lead to significant lead leaching from brasses of comparatively low lead content
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Cupronickel
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Cupronickel is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. Despite its high content, cupronickel is silver in colour. Cupronickel is highly resistant to corrosion in seawater because its potential is adjusted to be neutral with regard to seawater. Another common use of cupronickel is in silver-coloured modern-circulated coins, a typical mix is 75% copper, 25% nickel, and a trace amount of manganese. In the past, true silver coins were debased with cupronickel, Cupronickel alloys are used for marine applications due to their resistance to seawater corrosion, good fabricability, and their effectiveness in lowering macrofouling levels. Alloys ranging in composition from 90% Cu–10% Ni to 70% Cu–30% Ni are commonly specified in heat exchanger or condenser tubes in a variety of marine applications. Desalination plants, Cupronickel alloys are used in brine heaters, heat rejection and recovery, offshore oil and gas platforms and processing and FPSO vessels, Cupronickel alloys are used in systems and splash zone sheathings. Power generation, Cupronickel alloys are used in steam turbine condensers, oil coolers, auxiliary cooling systems and high pressure pre-heaters at nuclear, seawater system design, Cupronickel alloys are used in tubular heat exchangers and condensers, piping and high pressure systems. Seawater system components, Cupronickel alloys are used in condenser and heat exchanger tubes, tubesheets, piping, fittings, pumps, in Europe, Switzerland pioneered the nickel billon coinage in 1850, with the addition of silver. In 1968, Switzerland adopted the far cheaper 75,25 copper to nickel ratio then being used by the Belgians, the United States, and Germany. From 1947 to 2012, all “silver” coinage in the UK was made from cupronickel, prior to these dates, both denominations had been made only in silver in the United States. Cupronickel is the cladding on either side of United States half-dollars since 1971, currently, some circulating coins, such as the United States Jefferson nickel, the Swiss franc, and the South Korean 500 and 100 won are made of solid cupronickel. Single-core thermocouple cables use a single pair of thermocouple conductors such as iron-constantan. These have the element of constantan or nickel-chromium alloy within a sheath of copper. Cupronickel is used in cryogenic applications, beginning around the turn of the 20th century, bullet jackets were commonly made from this material. It was soon replaced with gilding metal to reduce fouling in the bore. Currently, cupronickel remains the basic material for silver-plated cutlery and it is commonly used for mechanical and electrical equipment, medical equipment, zippers, jewelry items, and as material for strings for string instruments. Fender Musical Instruments used CuNiFe magnets in their Wide Range Humbucker pickup for various Telecaster and Starcaster guitars during the 1970s, for high-quality cylinder locks and locking systems, cylinder cores are made from wear-resistant cupronickel
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Reuleaux triangle
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A Reuleaux triangle is a shape formed from the intersection of three circular disks, each having its center on the boundary of the other two. It is a curve of constant width, the simplest and best known such curve other than the circle itself, Constant width means that the separation of every two parallel supporting lines is the same, independent of their orientation. Because all its diameters are the same, the Reuleaux triangle is one answer to the question Other than a circle, Reuleaux triangles have also been called spherical triangles, but that term more properly refers to triangles on the curved surface of a sphere. Among constant-width shapes with a width, the Reuleaux triangle has the minimum area. By several numerical measures it is the farthest from being centrally symmetric and it provides the largest constant-width shape avoiding the points of an integer lattice, and is closely related to the shape of the quadrilateral maximizing the ratio of perimeter to diameter. It can perform a rotation within a square while at all times touching all four sides of the square. However, although it covers most of the square in this process, it fails to cover a small fraction of the squares area. Because of this property of rotating within a square, the Reuleaux triangle is sometimes known as the Reuleaux rotor. The Reuleaux triangle is the first of a sequence of Reuleaux polygons, some of these curves have been used as the shapes of coins. Alternatively, the surface of revolution of the Reuleaux triangle also has constant width, the Reuleaux triangle may be constructed either directly from three circles, or by rounding the sides of an equilateral triangle. The three-circle construction may be performed with a compass alone, not even needing a straightedge, by the Mohr–Mascheroni theorem the same is true more generally of any compass-and-straightedge construction, but the construction for the Reuleaux triangle is particularly simple. The first step is to mark two points of the plane, and use the compass to draw a circle centered at one of the marked points. Next, one draws a circle, of the same radius, centered at the other marked point. Finally, one draws a circle, again of the same radius. The central region in the arrangement of three circles will be a Reuleaux triangle. Alternatively, a Reuleaux triangle may be constructed from an equilateral triangle T by drawing three arcs of circles, each centered at one vertex of T and connecting the two vertices. Or, equivalently, it may be constructed as the intersection of three disks centered at the vertices of T, with equal to the side length of T. In any pair of parallel supporting lines, one of the two lines will necessarily touch the triangle at one of its vertices, the other supporting line may touch the triangle at any point on the opposite arc, and their distance equals the radius of this arc
Barbados