**Country - Mathematician of Origin Discovery, Invention, and/or Specialty**

**Archimedes** Greece pi, the lever, the screw, formulas for the areas of various plane and solid figures

**Babbage, Charles** England difference engine, analytical engine (early calculator/computer)

**Descartes, René **France analytic geometry, x and y axes

**Diophantus**, Greece algebra

**Euclid**, Greece euclidean geometry

**Euler**, Leonhard Switzerland differential calculus, algebraic notation

**Fermat**, Pierre de France number theory, probability theory

**Fibonacci** Italy Fibonacci’s sequence: 1, 1, 2, 3, 5, 8, 13, 21 … (each number is the sum of the two previous numbers)

**Hipparchus **Rhodes trigonometry, mapping

**Leibniz**, Gottfried Germany calculus, symbolic logic

**Lovelace** Augusta Ada King, England analytical engine

**Möbius**, Auguste Switzerland topology, Möbius strip

Ferdinand Napier, John Scotland logarithms, calculating machine

**Newton**, Isaac England gravitation, integral and differential calculus

**Pascal**, Blaise France calculating machine, barometer, Pascal’s triangle

**Pythagoras** Greece irrational numbers, Pythagorean theorem, prime and composite numbers

**Russell**, Bertrand England formal logic

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