Adrien-Marie Legendre

Adrien-Marie Legendre was born in France on 18 September 1752 and spent his life working through the fine structure of mathematics. He developed the Legendre polynomials, functions that became essential in solving problems across physics, and introduced the Legendre transformation, a technique still central to mechanics. He was the first to officially publish the method of least squares, a cornerstone of data fitting, though Carl Friedrich Gauss had discovered it independently before him. His contributions threaded through the century's mathematical thought. He died on 9 January 1833.