this page compiles material related to: letter to Auguste Chevallier 29 May 1832 scan of original: (wikipedia) French original text: (web) English translation: (pdf) commonly known as la lettre testament or Galois’ last letter, since, famously, the morning after writing it the author died in a duel. The letter announces Galois’ solution to the “solvability of equations by radicals”. It is commonly cited as the first printed appearance of the term group in modern mathematical practice...