This monumental collection of 34 historical papers on quantum electrodynamics features contributions by the 20th century's leading physicists: Dyson, Fermi, Feynman, Foley, Oppenheimer, Pauli, Weisskopf, and others. Twenty-nine are in English, three in German, and one each in French and Italian. Editor Julian Schwinger won a Nobel Prize for his pioneering work in quantum electrodynamics.