**1100 AD**

**1715**

**1900**

**450 BC**

**1800**

**Timeline of Famous Mathematicians**

Hypatia of Alexandria-Born approx. between 355 AD–370 AD

She surpassed her father's knowledge at a young age

She is known for her work on the ideas of conic sections introduced by Apollonius. She edited his work making the concepts and ideas easier to understand, thus making the work survive through many centuries.

Hypatia was the first woman to have a huge impact on the development of mathematics

Rene Descartes-Born 1596

In school, he may have been ill, because he did not have to abide by the school’s rigorous schedule and was allowed to rest in bed until mid-morning.

He introduced the concept of Cartesian geometry.

His most famous observation in philosophy was contained in his quote, “I think; therefore I am.”

David Hilbert-Born 1862

Created the famous 23 Paris problems that challenged mathematicians to solve fundamental questions.

Hilbert's first work was on invariant theory and, in 1888, he proved his famous Basis Theorem.

He was a professor at the University of Königsberg.

Jules Henri Poincaré-Born 1854

He believed that logic was a system of analytic truths.

He believed that the aim of science is prediction rather than explanation

He viewed that in mathematics, methods of logic can be used to check a proof, but intuition must be used to create a proof.

Georg Cantor-Born 1845

Was a part of a small group of young mathematicians who met weekly in a wine house.

A major event planned in Halle to mark Cantor's 70 th birthday in 1915 had to be canceled because of the war.

During his periods of depression, he tended to turn away from mathematics and turn towards philosophy.

Pierre de Fermat-Born 1601

Made many contributions, some of which were to calculus, number theory, and the law of refraction.

While he was reading a copy of Diophantus' Arithmetica, Fermat made a note in the margin that remained unsolved until very recently.

His wife was his cousin fourth removed.

His books were hand written because he lived before the time of printing.

Fibonacci is best remembered today for influencing the Fibonacci Sequence, which is where each number in a sequence is the sum of the two preceding numbers. ie. 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ...

Fibonacci's work in number theory was almost wholly ignored and virtually unknown during the Middle ages.

Leonardo Fibonacci-Born 1170

Pythagoras-Born 570 BC

One of the most famous and controversial ancient Greek philosopher.

Pythagoras had his own cult, of which he was the leader of.

When not talking numbers with his cult, he was living in a cave.

Augustin Cauchy-Born 1789

He proved that the angles of a convex polyhedron are determined by its faces.

Cauchy did not have particularly good relations with other scientists.

He produced 789 mathematics papers.

Bernhard Reimann-Born 1826

He read Legendre's 900 page book on the theory of numbers in six days.

Riemann's work always was based on intuitive reasoning

He was heavily influenced by Gauss

Alexander Grothendieck-Born 1928

He was born out of wedlock, though the couple stayed together all their lives.

He is well known for his theories in algebraic geometry, homological algebra and functional analysis.

He announced his retirement from the University of Montpellier and presently lives in France.

Archimedes-Born 287 BC

He invented Many war machines used in the defense of Syracuse, compound pulley systems, and the planetarium

Legend says, he succeeded in destroying a fleet of Roman ships by using an array of mirrors to catch them on fire

He is said to have asked his kinsmen and friends to place over the grave where he should be buried a cylinder enclosing a sphere

Joseph-Louis Lagrange-Born 1736

By age 19, he was appointed to a professorship at the Royal Artillery School in Turin

Made contributions in calculus of variations, solution of polynomial equations and power series and functions.

He was always a shy and modest man, who was buried in honor in the Pantheon.

Leonhard Euler-Born 1707

Early on, Euler learned no mathematics at all from a school in Basel because it was a poor school.

His interest in mathematics was sparked by his father's teaching

Euler proved the equation e^(iπ) = -1

Carl F. Gauss-Born 1777

At the age of ten, he intuitively derived the formula to find the sum of consecutive numbers

He discovered that a regular polygon with 17 sides could be drawn using just a compass and straight edge

He refused to publish theories that were not finished and perfect.

BC|AD