Voltaire. Essay sur les moeurs // Oeuvres completes de Voltaire. Vol. III. Paris: Chez Furne, 1835. P. 583.
Gibbon. II. P. 245–247, 254, 263.
Ibid., III. P. 318–319, note 8.
Ibid., III. P. 322–323, note 22; Gulya Janos. Some Eighteenth Century Antecedents of Nineteenth Century Linguistics: The Discovery of Finno-Ugrian // Studies in the History of Linguistics: Traditions and Paradigms. Ed. Dell Hymes. Bloomington: Indiana Univ. Press, 1974. P. 260–263.
Gibbon. III. P. 324–326, 329.
Ibid., III. P. 330–331, note 45.
Ibid., III. P. 332–333, 335, note 58, 337.
Ibid., III. P. 343–344; Spadafora David. The Idea of Progress in Eighteenth-Century Britain. New Haven, Conn.: Yale Univ. Press, 1990. P. 223–224; Porter Roy. Edward Gibbon: Making History. London: Weidenfeld and Nicholson, 1988. Chapter 6. «Civilization, Barbarism, and Progress». P. 135–157.