The history of group theory, a mathematical domain studying groups in their various forms, has evolved in various parallel threads. There are three historical roots of group theory: the theory of alge
Galois age fifteen, drawn by a classmate.
Évariste Galois was a French mathematician and political activist. While still in his teens, he was able to determine a necessary and sufficient condition for a polynomial to be solvable by radicals,
The Cour d'honneur of the Lycée Louis-le-Grand, which Galois attended as a boy.
Augustin-Louis Cauchy reviewed Galois's early mathematical papers.
Battle for the Town Hall by Jean-Victor Schnetz. Galois, as a staunch republican, would have wanted to participate in the July Revolution of 1830 but was prevented by the director of the École Normale.