Mathematics is an evolving discipline. It is constantly expanding and changing. Although the ancient Greeks, for instance, began to develop number theory and made major contributions to geometry and logic, they had little inkling of probability, which wasn't formalized until the mid 1600s.

3000 B.c  Egyptians and Babylonians begin the development of number systems and early bookkeeping. Simple problems of arithmetic and geometry necessary to a civilized society become commonplace.  
700 B.c.  Ancient Greece starts to flourish. Greek thinkers contribute number theory, geometry, and logic to mathematics.  
530 B.c  Pythagoras, one of the most famous of the Greek mathematicians and philosophers, founds the Pythagorean movement.  
300 B.c.  Euclid completes his writing of Elements, 13 volumes on mathematics.  
100 A.D  Astronomers begin to develop trigonometry.  
170  Ptolemy, mathematician and astronomer, declares that the earth is the center of the universe. This becomes the dominate view until the 17th century when Copernicus claims that the sun is the center of the solar system.  
200  Diophantus, a Gr~ek mathematician, develops algebra. He is considered by many to be the father of that subject.  
540  Diophantus and astronomer, advances mathematics by solving the quadratic equation.  
600  Geometry, algebra, and numeral systems benefit from Hindu and Arabian thought. The idea of zero is introduced  
775  The translation of Hindu mathematics to Arabic takes place.  
830  alKhowarizml, an Arabian, works with algebra, numeral systems, and equations.  
1100  Arabic and Hindu mathematics spread throughout Western Europe.  
1200  Leonardo of Pis a (Fibonacci), an Italian, works with equations, sequences, series, and Pi.  . 
1478  The first mathematics books are printed.  
1489  The signs of + and  are introduced  
1500  Negative numbers and perspective are introduced.  
1525  Great work is done on solving equations.  
1540  Imaginary numbers are explored.  
1557  Englishman Robert Record writes the first English algebra text.  
1560  The Italian Girolamo Cardano works with complex numbers, equations, and probability.  
1580  Decimals are introduced. 

1614  John Napier, Scottish mathematician, creates the first system of logarithms. He is the first to use the decimal point.  
1630  The coordinate system is developed.  
1640  Rene Descartes, French philosopher, scientist, and mathematician, works on systemizing analytic geometry. He also attempts to classify curves according to the types of equations that produce them.  
1645  Pierre de Fermat, French mathematician, studies various topics, including coordinates, polygons, probability, and the Pythagorean theorem.  
1650  Blaise Pascal, French philosopher, physicist, and mathematician, formulates one of the basic theorems of projective geometry, known as Pascal's theorem. He also invents the first adding machine.  
1680  The German Gottfried Wilhelm von Leibniz works on calculus, functions, and infinity.  
1700  Work on determinants is done.  
1780  Complex numbers are explored by several mathematicians.  
1799  The Metric System is introduced.  
1800  Theories on projection are developed. Number theory is explored.  
1810  Carl Friedrich Gauss, a German mathematician, expands the study of number theory.  
1820  The Russian Nikolai Ivanovich LCl'Qachevsky works on geometry.  
1840  Various mathematicians work with matrices, vectors, and symbolic logic.  
1870  George Cantor works with infinite sets.  
1905  Albert Einstein develops the theory of relativity.  
1910  Various mathematicians, including Alfred North Whitehead and Bertrand Russell, study the logical foundations of mathematics.  
1920  Emmy Noether studies abstract algebra.  
1945  Various mathematicians and researchers work on computers.  
1976  Kenneth Appel and Wolfgang Haken find a solution of the Four Color Problem.  
1977  Robert Connelly finds a rigidity counterexample.  
1993  Andrew Wiles presents what he believes is the proof of the most famous problem in mathematicsFermat's last theorem. At the time of this book's printing, Wiles' work has not been confirmed. 
The Math Teacher's Book of Lists 1995 by Prentice Hall
Candace M. Jordan
WizzySchool
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