1. Thales of Miletus (ca. 625-ca. 547 B.C.E.): Earliest Proofs of Geometrical Theorems - 2. Pythagoras of Samos (ca. 560-ca. 480 B.C.E.): Ancient Greek Proves Theorem about Right Triangles - 3. Euclid of Alexandria (ca. 325-ca. 270 B.C.E.): Geometer Who Organized Mathematics - 4. Archimedes of Syracuse (ca. 287-212 B.C.E.): Innovator of Techniques in Geometry - 5. Hypatia of Alexandria (ca. 370-415 C.E.): First Woman of Mathematics - 6. Aryabhata I (476-550 C.E.): From Alphabetical numbers to the Rotation of the Earth - 7. Brahmagupta (598-668 C.E.): Father of Numerical Analysis - 8. Abu Ja'far Muhammad ibn Musa al-Khwarizmi (ca. 800-ca.847 C.E.): Father of Algebra - 9. Omar Khayyam (ca. 1048-ca. 1131 C.E.): Mathematician, Astronomer, Philosopher, and Poet - 10. Leonardo Fibonacci (ca. 1175-ca. 1250 C.E.): Hindu-Arabic Numerals in Europe.
