Which French author may have inspired the title War and Peace?

Pierre-Joseph Proudhon may have inspired the title of Leo Tolstoy’s War and Peace.

Proudhon was a French socialist and anarchist theorist whose 1861 book La Guerre et la Paix had the same title in French. Tolstoy met Proudhon in Brussels in 1861, making the connection historically plausible. However, no definitive evidence proves that Tolstoy directly borrowed the title, so reference works generally present the attribution cautiously.

Tolstoy’s novel was initially serialized under the title 1805, beginning in 1865. He substantially revised the work before its complete publication in 1869, when War and Peace became its established title. The novel combines fictional characters with historical events from the Napoleonic Wars and includes extensive reflections on history, leadership, and free will.

A related misconception concerns the Russian word mir: before the 1918 spelling reform, separate spellings could distinguish “peace” from “world.” That linguistic fact has encouraged alternative interpretations, but the usual English title remains War and Peace.