This document provides a brief overview of important mathematicians throughout history including Pythagoras who founded one of the first societies for mathematics and discovered the Pythagorean theorem, Euclid who wrote The Elements which is still used today to teach geometry, and Al-Khwarizmi who wrote the first book on algebra and introduced Arabic numerals and algorithms to mathematics. It also mentions other influential figures such as Galileo, Euler, and L'Hopital and their contributions to fields like calculus, trigonometry, and differential equations.