Leonhard Euler

Leonhard Euler was a Swiss mathematician, physicist, astronomer, geographer, logician, and engineer who founded the studies of graph theory and topology and made pioneering and influential discoveries in many other branches of mathematics such as analytic number theory, complex analysis, and infinitesimal calculus. He introduced much of modern mathematical terminology and notation, including the notion of a mathematical function. He is also known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory.

15 April 1707

Born on the same birth day (15 April): Alfred S. Bloomingdale • Catherine I of Russia • Christian V of Denmark • Elizabeth Catlett • Finidi George • Francesco Maria Brancaccio • John Williams (actor) • Leander Dendoncker • Robert Mills (physicist) • Robert Sibbald • Suleiman II of the Ottoman Empire

Born in the same month (April 1707): Henry Fielding • Michel Corrette