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Leonhard Euler

(Mathematician, Physicist)

**Birthdate:**April 15, 1707

**Sun Sign:**Aries

**Birthplace:**Basel

**Died:**September 18, 1783

Leonhard Euler was a Swiss mathematician, physicist, astronomer, geographer, logician, and engineer known for his foundational work in graph theory and topology. He made significant contributions to various branches of mathematics, including number theory, complex analysis, and calculus. Euler was instrumental in developing modern mathematical terminology and notation, such as the concept of a mathematical function. His influence extended to mechanics, fluid dynamics, optics, astronomy, and music theory. Euler's prolific publications and correspondence are highly regarded, with his work continuing to shape mathematics and physics today.