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1780, apparently coined by Jeremy Bentham from inter- + national. In communist jargon, as a noun and with a capital -i-, it is short for International Working Men's Association, the first of which was founded in London by Marx in 1864. "The Internationale" (from fem. of French international), the socialist hymn, was written 1871 by Eugène Pottier. International Date Line is from 1910. Related: Internationally.
An international organization of workers founded by Karl Marx in the 1860s. Weakened by disputes, it was dissolved in 1876, but it was succeeded by three later Internationals, which sought to spread communism throughout the world. The most effective of these was the Third International, formed by the Soviet Union in 1919 and dissolved in 1943 by Joseph Stalin.