Jules Henri Poincaré was a noted French mathematician, theoretical physicist, engineer, and philosopher of science. Educated first at École Polytechnique and then at École des Mines, he started his career at the University of Caen as a junior lecturer in technical mathematical analysis. After writing his first major paper, he established himself as an eminent mathematician at the age of 27. Thereafter, he moved to University of Paris as an Associate Professor of Analysis, remaining with it until his death, occupying number of important chairs. Concurrently, he also worked for the Ministry of Public Service and for a short period taught at École des Mines. In spite of such busy schedule, he published a huge volume of works, including his seminal mathematical paper, ‘Analysis Situs’, which provided the first systematic treatment of topology. Later, he used his literary skills to popularize mathematics and science among the general masses, writing three popular books, ‘Science and Hypothesis’, ‘The Value of Science’, and ‘Science and Method’. He died at an early age of 58.