The Eighteenth Brumaire of Louis Napoleon is an essay written by Karl Marx between December 1851 and March 1852, and originally published in 1852 in Die Revolution, a German monthly magazine published in New York City by Marxist Joseph Weydemeyer. Later English editions, such as the 1869 Hamburg edition with a preface by Marx, were entitled The Eighteenth Brumaire of Louis Bonaparte. The essay serves as a major historiographic application of Marx's "materialist conception of history".