<P> "The shot heard round the world" is a phrase which refers to an event that precipitates or completes a major conflict or contest, most commonly the first gunfire at the beginning of a war . The phrase originated in a poem which describes the 1775 Battles of Lexington and Concord which opened the American Revolutionary War, but it has since been used to refer to other events, such as the assassination of Archduke Franz Ferdinand of Austria in 1914 . </P> <P> The phrase comes from the opening stanza of Ralph Waldo Emerson's "Concord Hymn" (1837) and refers to the first shot of the American Revolutionary War . According to Emerson's poem, this pivotal shot occurred at the North Bridge in Concord, Massachusetts, where the first British soldiers fell in the battles of Lexington and Concord . </P>

When was the shot heard around the world fired
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