The age of Voltaire a history of civilization in Western Europe from 1715 to 1756, with special emphasis on the conflict between religion and philosophy
The age of Louis XIV a history of European civilization in the period of Pascal, Molière, Cromwell, Milton, Peter the Great, Newton, and Spinoza 1648-1715
The age of reason begins a history of European civilization in the period of Shakespeare, Bacon, Montaigne, Rembrandt, Galileo, and Descartes: 1558-1648