Articles from 100 years ago
H. A. Lorentz, Proceedings of the Academy of
Amsterdam, 1904. (Scanned from "The principle of relativity", Dover).
A. Einstein, Annalen der Physik 17, 891 (1905)
German (English pdf by John Walker, he
has a new version and more
A. Einstein, Annalen der Physik 18, 639 (1905)
"Does the inertia of a body depend on its energy content?"
(aka "the E=mc^2 paper")
PDF thanks to John Walker.
H. Poincare, Rend. Circ. Mat. Palermo 21, 129 (1906)
"On the dynamics of the electron",
PDF thanks to Scott Walter.