The Grothendieck Circle
- Aims to make publicly available materials written by and about Alexandre Grothendieck. Made contributions to algebraic geometry, homological algebra and functional analysis. Page includes list of mathematical,biographical publications and some portrait
- http://www.math.jussieu.fr/~leila/grothendieckcircle/index.php

History of Mathematics
- Online texts of historic mathematical people, including Hamilton, Riemann, Newton, Boole, and Cantor. Also, has biographical backgrounds for key figures during the 17th and 18th centuries.
- http://www.maths.tcd.ie/pub/HistMath/HistMath.html

Fibonacci Mathematics by Dr. Peter Reimers
- Describes the rabbit problem and the Fibonacci sequence and some generalized rules.
- http://www.fibonacci-mathematics.de/

Sheynin, Oscar
- Freelance researcher specializes in the history of probability, statistics and error theory. Page includes list of publications and outside reviews.
- http://www.sheynin.de/

Shortest path to Gauss
- This site is the quickest access to information about C.F.Gauss, although reduced to a single page.
- http://www.gauss.info

Archimedes
- Provides a biography and cultural background, as well as details about his discoveries. Page includes photos and a timeline.
- http://www.mcs.drexel.edu/~crorres/Archimedes/contents.html

The Eratosthenes Project
- Gives information about the techniques and computations used by this ancient mathematician to find the circumference of the earth. Includes sample sketch and reconstructed map of the world.
- http://www.phys-astro.sonoma.edu/observatory/eratosthenes/

Eratosthenes of Cyrene (276-194 BC)
- Discusses this early Grecian's discoveries in finding a good approximation of the circumference of the earth, the tilt angle of our planet and a tool for finding prime numbers. Page includes biographical information.
- http://www.eranet.gr/eratosthenes/html/eoc.html

The Grothendieck Biography Project
- Links relating to Alexandre Groethendieck.
- http://www.fermentmagazine.org/home5.html

Galois, Evariste
- Biography in the St Andres archive.
- http://www-groups.dcs.st-andrews.ac.uk/~history/Mathematicians/Galois.html

Andrei Nikolaevich Kolmogorov (1903-1987)
- The most prominent twentieth-century mathematician.
- http://kolmogorov.com/Kolmogorov.html

Biographies of Women Mathematicians
- On-going project by students in mathematics classes at Agnes Scott College, in Atlanta, Georgia.
- http://www.agnesscott.edu/lriddle/women/women.htm

The History of Mathematics
- Collection of original papers of Berkeley, Hamilton, Riemann, Boole, Cantor, and Newton. Includes background and notes. Maintained by David R. Wilkins from Trinity College, Dublin
- http://www.maths.tcd.ie/pub/HistMath/

Kolmogorov, Andrei Nikolaevich (1903-1987)
- Worked on trigonometric series, set theory, integration analysis, constructive logic, topology, approximation methods, probability, statistics, random processes, information theory, dynamical systems, algorithms, celestial mechanics, Hilbert's 13th probl
- http://www.cwi.nl/~paulv/KOLMOGOROV.BIOGRAPHY.html

Archimedes (c. 287 B.C.-212 B.C.)
- (Encyclopedia.com) Greek mathematician, physicist, and inventor.
- http://www.encyclopedia.com/html/a/archimedes.asp

Galois - The Evariste Galois Archive
- Includes personal biography, explanation of his theory and related links.
- http://www.galois-group.net/

Al-Sabi Thabit ibn Qurra al-Harrani
- Gives information on background and contributions to non-euclidean geometry, spherical trigonometry, number theory and the field of statics. Was an important translator of Greek materials, including Euclid's Elements, during the Middle Ages.
- http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Thabit.html

Peirce, Benjamin (1809-1880)
- Life and work of 19th century mathematician and philosopher of mathematics; by Ivor Grattan-Guinness and Alison Walsh.
- http://plato.stanford.edu/entries/peirce-benjamin/

Oughtred, William (1574-1660)
- Best known for the invention of an early form of the slide rule.
- http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Oughtred.html

Lambert - Johann Heinrich Lambert (1728 - 1777)
- In a memoir in 1768 on transcendental magnitudes he proved that pi is incommensurable.
- http://www.maths.tcd.ie/pub/HistMath/People/Lambert/RouseBall/RB_Lambert.html

Gauss, Johann Carl Friedrich (1777-1855)
- One of the all-time greats, Gauss began to show his mathematical brilliance at the early age of seven. He is usually credited with the first proof of The Fundamental Theorem of Algebra.
- http://www-groups.dcs.st-andrews.ac.uk/~history/Mathematicians/Gauss.html

Dirichlet - Johann Peter Gustav Lejeune Dirichlet (1805-1859)
- Proved that in any arithmetic progression with first term coprime to the difference there are infinitely many primes, units in algebraic number theory, ideals, proposed the modern definition of a function.
- http://turnbull.dcs.st-and.ac.uk/~history/Mathematicians/Dirichlet.html

Diophantus of Alexandria (c. 200-284 )
- Best known for his Arithmetica, a work on the theory of numbers, a collection of 130 problems giving numerical solutions of determinate equations.
- http://history.math.csusb.edu/Mathematicians/Diophantus.html

Chebyshev - Pafnuty Lvovich Chebyshev (1821-1894)
- Work on prime numbers included the determination of the number of primes not exceeding a given number, wrote an important book on the theory of congruences, proved that there was always at least one prime between n and 2n for n > 3.
- http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Chebyshev.html

Cauchy, Augustin Louis (1789-1857)
- Cauchy contributed to almost every branch of mathematics. He is probably best known for his important contributions to real and complex analysis.
- http://www-groups.dcs.st-andrews.ac.uk/~history/Mathematicians/Cauchy.html

Bessel - Friedrich Wilhelm Bessel (1784-1846)
- Catalogued stars, predicted a planet beyond Uranus as well as the existence of dark stars, investigated Johann Kepler's problem of heliocentricity, and systematized the mathematical functions involved, which now bear his name.
- http://www.astro.uni-bonn.de/~pbrosche/persons/pers_bessel.html

Bernoulli, Daniel (1700-1782)
- Most important work considered the basic properties of fluid flow, pressure, density and velocity, and gave their fundamental relationship now known as Bernoulli's principle.
- http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Bernoulli_Daniel.html

Zermelo - Ernst Friedrich Ferdinand Zermelo (1871-1953)
- Zermelo in 1908 was the first to attempt an axiomatisation of set theory
- http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Zermelo.html

Schmidt, Erhard (1876-1959)
- Main research was functional analysis, doctorate was obtained under Hilbert's supervision, main interest was in integral equations and Hilbert space, best remembered for the Gram-Schmidt orthogonalisation process.
- http://history.math.csusb.edu/Mathematicians/Schmidt.html

Pell, John (1611-1685)
- Worked on algebra and number theory, gave a table of factors of all integers up to 100000 in 1668. Pell's equation is y^2 = ax^2 + 1, where a is a non-square integer.
- http://history.math.csusb.edu/Mathematicians/Pell.html

Galois, Évariste (1811-1832)
- Galois theory, a branch of mathematics dealing with the general solution of equations, group theory, method of determining when a general equation could be solved by radicals, solved many long-standing unanswered questions.
- http://history.math.csusb.edu/Mathematicians/Galois.html

Dedekind, Richard (1831-1916)
- study of CONTINUITY and definition of the real numbers in terms of Dedekind "cuts", the nature of number and mathematical induction, definition of finite and infinite sets; algebraic number fields, concept of RINGS.
- http://euler.ciens.ucv.ve/English/mathematics/dedekind.html

Cramer - Gabriel Cramer (1704-1752)
- Best known for his work on determinants, made contributions to the study of algebraic curves.
- http://history.math.csusb.edu/Mathematicians/Cramer.html

d'Alembert - Jean Le Rond d'Alembert (1717-1783)
- Helped to resolve the controversy in mathematical physics over the conservation of kinetic energy by improving Newton's definition of force.
- http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/D'Alembert.html

Fibonacci - Who was Fibonacci? - Leonardo of Pisa (1175?-1250)
- His names, mathematical contributions, Introducing the decimal number system into Europe, Fibonacci Series.
- http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fibBio.html

Plato (427-347 B.C.)
- "... the reality which scientific thought is seeking must be expressible in mathematical terms, mathematics being the most precise and definite kind of thinking of which we are capable."
- http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Plato.html

Cauchy - Augustin-Louis Cauchy (1789-1857)
- (Catholic Encyclopedia) Theory of polyhedra, symmetrical functions, proof of a theorem of Fermat which had baffled mathematicians like Gauss and Euler.
- http://www.newadvent.org/cathen/03457a.htm

Abel - Niels Henrik Abel (1802-1829)
- Norwegian mathematician. Worked on elliptic functions and integrals, algebraic solution of equations and solubility by radicals.
- http://www-history.mcs.st-andrews.ac.uk/history/Mathematicians/Abel.html

Fermat - Pierre de Fermat (1601-1665)
- From `A Short Account of the History of Mathematics' (4th edition, 1908) by W. W. Rouse Ball.
- http://www.maths.tcd.ie/pub/HistMath/People/Fermat/RouseBall/RB_Fermat.html