1859 – Born in Mulhouse, Alsace on the 9th of October.
1871 – His entry into the military was influenced by the experience of seeing Prussian troops enter his hometown when he was eleven years old.
1877 – Alfred was accepted into the École Polytechnique for initial military training and thorough scientific studies.
1880 – Graduated as a sub-lieutenant.
1882 – He attended an academy at Fontainebleau for more specialized training as an artillery officer.
1885 – He was attached to the first division of the 32nd Cavalry Regiment and promoted to lieutenant.
1889 – He was made adjutant to the director of the pyrotechnical school in Bourges, and promoted to captain.
1891 – On the 18th of April, Dreyfus married Lucie Hadamard who would later bear his son Pierre and daughter Jeanne.
1894 – Dreyfus was arrested for treason on the 15th of October.
1895 – On the 5th of January, Dreyfus was stripped of his army rank and sentenced to life imprisonment on Devil’s Island.
1906 – The events that follow until his eventual exoneration on the 12th of July are chronicled in the article on the Dreyfus affair concerning which he was best known.
1907 – Dreyfus’ time in prison, notably at Devil’s Island, had been difficult on his health, and he was granted retirement in October.
1917 – He even served in front-line duty, although he had reached normal retirement. Dreyfus’ son, Pierre, served in numerous battles as an artillery captain and managed to survive the entire war; he was awarded the Croix de Guerre for his services.
1935 – Died in Paris on the 12th of July, at the age of 75, his funeral cortege passed the Place de la Concorde through the ranks of troops assembled for the Bastille Day National Holiday.