"Iron horse" is an iconic literary term (currently transitioning into an archaic reference) for a steam locomotive, originating in the early 1800s when horses still powered most machinery, excepting windmills and stationary steam engines. The term was common and popular in both British and North American literary articles.
Use of the term
Iron Horse was used admiringly when comparing early road and railroad traction engines performance to slower, less powerful horse powered tramways. The Iron Horse term became widely popularized and found frequent use in the century and a half following the competition won by Stephenson's Rocket, in innumerable newspaper articles as well as in various novels. The term's place as a cultural icon is shown by the sheer number of things named after it, and its use in films, other media, and as a term of endearment.
It began to decline in use, at least in North American colloquial expression, or as a reference term of art in the information industries with the decline in rail passenger service in the age of the U.S. Interstate Highway System.
- "Iron horse". Random House Dictionary. dictionary.com. Retrieved 29 September 2010.
–noun Older Use. A locomotive. Origin: 1825–35