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Paolo Dagomari
Paolo Dagomari da Prato (1282–1374), known in Latin as Paulus Geometrus (''Paolo il Geometra'', "Paul the Geometer"), was a noted Florentine mathematician and astronomer, such a ''maestro dell'abbaco'' (master/teacher of the abacus) that he gained the epithet Paolo dell'Abbaco. Franco Sacchetti called him ''Paolo Arismetra e Astrologo'' (arithmetician and astronomer) and Giorgio Vasari ''Paulo Strolago'' or ''Paolo Astrologo'' (astronomer). He reputedly had 6,000–10,000 pupils over the course of his life, being praised by contemporaries like Giovanni Gherardi da Prato, Filippo Villani, and Giovanni Villani in his ''Cronica''. Paolo was born at Prato, the son of Piero Dagomari, who had moved to Florence. At Florence Paolo became the private tutor of Jacopo Alighieri and a friend of Giovanni Boccaccio, who praised him highly in his '' De genealogia deorum gentilium''. The need for mathematics among the bankers and merchants of Florence led him to found a school of arithm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Trinita
Santa Trinita (; Italian for "Holy Trinity") is a Roman Catholic church located in front of the piazza of the same name, traversed by Via de' Tornabuoni, in central Florence, region of Tuscany, Italy. It is the mother church of the Vallumbrosan Order of monks, founded in 1092 by a Florentine nobleman. South on Via de' Tornabuoni is the Ponte Santa Trinita over the river Arno; across the street is the Palazzo Spini Feroni. History The church is home to the Sassetti Chapel, containing 15th-century frescoes by Domenico Ghirlandaio, and the Bartolini Salimbeni Chapel, with frescoes by Lorenzo Monaco. Even though the modern Italian word for "trinity" is ''trinità'', with an accent indicating stress on the last vowel, the old Florentine pronunciation used to put the stress on the first vowel, and the name is therefore written without an accent; sometimes, it is accented as ''trìnita'' to indicate the unusual pronunciation. The current church was constructed in 1258–1280 at the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
14th-century Italian Poets
As a means of recording the passage of time, the 14th century was a century lasting from 1 January 1301 ( MCCCI), to 31 December 1400 ( MCD). It is estimated that the century witnessed the death of more than 45 million lives from political and natural disasters in both Europe and the Mongol Empire. West Africa experienced economic growth and prosperity. In Europe, the Black Death claimed 25 million lives wiping out one third of the European population while the Kingdom of England and the Kingdom of France fought in the protracted Hundred Years' War after the death of Charles IV, King of France led to a claim to the French throne by Edward III, King of England. This period is considered the height of chivalry and marks the beginning of strong separate identities for both England and France as well as the foundation of the Italian Renaissance and Ottoman Empire. In Asia, Tamerlane (Timur), established the Timurid Empire, history's third largest empire to have been ever establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1374 Deaths
Year 1374 ( MCCCLXXIV) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events January–December * April 23 – In recognition of his services, Edward III of England grants the English writer Geoffrey Chaucer a gallon of wine a day, for the rest of his life. * June 24 – The illness dancing mania begins in Aix-la-Chapelle (Aachen), possibly due to ergotism. * October 27 – King Gongmin of Goryeo is assassinated and succeeded by U of Goryeo on the throne of Goryeo (in modern-day Korea). * November 25 – James of Baux succeeds his uncle, Philip II, as Prince of Taranto (modern-day eastern Italy) and titular ruler of the Latin Empire (northern Greece and western Turkey). Date unknown * Rao Biram Dev succeeds Rao Kanhadev as ruler of Marwar (the modern-day Jodhpur district of India). * Shaikh Hasan Jalayir succeeds his father, Shaykh Uways Jalayir, as ruler of the Jalayirid Sultanate in modern-day Ir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1282 Births
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algebra
Algebra () is one of the broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathematics. Elementary algebra deals with the manipulation of variables (commonly represented by Roman letters) as if they were numbers and is therefore essential in all applications of mathematics. Abstract algebra is the name given, mostly in education, to the study of algebraic structures such as groups, rings, and fields (the term is no more in common use outside educational context). Linear algebra, which deals with linear equations and linear mappings, is used for modern presentations of geometry, and has many practical applications (in weather forecasting, for example). There are many areas of mathematics that belong to algebra, some having "algebra" in their name, such as commutative algebra, and some not, such as Galois theory. The word ''algebra'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arithmetic
Arithmetic () is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers— addition, subtraction, multiplication, division, exponentiation, and extraction of roots. In the 19th century, Italian mathematician Giuseppe Peano formalized arithmetic with his Peano axioms, which are highly important to the field of mathematical logic today. History The prehistory of arithmetic is limited to a small number of artifacts, which may indicate the conception of addition and subtraction, the best-known being the Ishango bone from central Africa, dating from somewhere between 20,000 and 18,000 BC, although its interpretation is disputed. The earliest written records indicate the Egyptians and Babylonians used all the elementary arithmetic operations: addition, subtraction, multiplication, and division, as early as 2000 BC. These artifacts do not always reveal the specific process used for solving problems, but t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geometry
Geometry (; ) is, with arithmetic, one of the oldest branches of mathematics. It is concerned with properties of space such as the distance, shape, size, and relative position of figures. A mathematician who works in the field of geometry is called a ''geometer''. Until the 19th century, geometry was almost exclusively devoted to Euclidean geometry, which includes the notions of point, line, plane, distance, angle, surface, and curve, as fundamental concepts. During the 19th century several discoveries enlarged dramatically the scope of geometry. One of the oldest such discoveries is Carl Friedrich Gauss' ("remarkable theorem") that asserts roughly that the Gaussian curvature of a surface is independent from any specific embedding in a Euclidean space. This implies that surfaces can be studied ''intrinsically'', that is, as stand-alone spaces, and has been expanded into the theory of manifolds and Riemannian geometry. Later in the 19th century, it appeared that geometries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equation
In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign . The word ''equation'' and its cognates in other languages may have subtly different meanings; for example, in French an ''équation'' is defined as containing one or more variables, while in English, any well-formed formula consisting of two expressions related with an equals sign is an equation. ''Solving'' an equation containing variables consists of determining which values of the variables make the equality true. The variables for which the equation has to be solved are also called unknowns, and the values of the unknowns that satisfy the equality are called solutions of the equation. There are two kinds of equations: identities and conditional equations. An identity is true for all values of the variables. A conditional equation is only true for particular values of the variables. An equation is written as two expressions, connected by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comma (punctuation)
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline of the text. Some typefaces render it as a small line, slightly curved or straight, but inclined from the vertical. Other fonts give it the appearance of a miniature filled-in figure on the baseline. The comma is used in many contexts and languages, mainly to separate parts of a sentence such as clauses, and items in lists mainly when there are three or more items listed. The word ''comma'' comes from the Greek (), which originally meant a cut-off piece, specifically in grammar, a short clause. A comma-shaped mark is used as a diacritic in several writing systems and is considered distinct from the cedilla. In Byzantine and modern copies of Ancient Greek, the " rough" and "smooth breathings" () appear above the letter. In Latvian, R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Period (punctuation)
The full stop (Commonwealth English), period (North American English), or full point , is a punctuation mark. It is used for several purposes, most often to mark the end of a declarative sentence (as distinguished from a question or exclamation). This sentence-ending use, alone, defines the strictest sense of ''full stop''. Although ''full stop'' technically applies only when the mark is used to end a sentence, the distinction – drawn since at least 1897 – is not maintained by all modern style guides and dictionaries. The mark is also used, singly, to indicate omitted characters or, in a series, as an ellipsis (), to indicate omitted words. It may be placed after an initial letter used to stand for a name or after each individual letter in an initialism or acronym (e.g., "U.S.A."). However, the use of full stops after letters in an initialism or acronym is declining, and many of these without punctuation have become accepted norms (e.g., "UK" and "NATO"). This trend has pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galleria Degli Uffizi
The Uffizi Gallery (; it, Galleria degli Uffizi, italic=no, ) is a prominent art museum located adjacent to the Piazza della Signoria in the Historic Centre of Florence in the region of Tuscany, Italy. One of the most important Italian museums and the most visited, it is also one of the largest and best known in the world and holds a collection of priceless works, particularly from the period of the Italian Renaissance painting, Italian Renaissance. After the ruling House of Medici died out, their art collections were given to the city of Florence under the famous ''Patto di famiglia'' negotiated by Anna Maria Luisa de' Medici, Anna Maria Luisa, the last Medici heiress. The Uffizi is one of the first modern museums. The gallery had been open to visitors by request since the sixteenth century, and in 1765 it was officially opened to the public, formally becoming a museum in 1865. History The building of the Uffizi complex was begun by Giorgio Vasari in 1560 for Cosimo I de' M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
