UNITED NATIONS (AP) — There have been many memorable moments in the 80-year history of the United Nations, both at its headquarters in New York and at its far-flung global operations. Here are photos ...

On this day in history, June 26, 1945, the United Nations was formally established with the signing of the U.N. Charter in San Francisco, California. Article 111 of the charter indicated, "The present ...

Karl Marx said a workers' revolution was inevitable but by the end of the 19th century, it had failed to materialize. In response, some of his followers began developing an important strain of Marxist ...

Members of the League of Nations looking over their shoulders during an assembly in Geneva, Switzerland, 1920. (Photo by Hulton Archive / Getty Images) Historians often interpret the history of Europe ...

Tracing the indelible mark Missouri has had on American history. Detailing the history of Missouri as a crossroads of a nation, part one of this three-part documentary series traces the state’s role ...