It included present-day Florida, the western shore of the Gulf of Mexico in Texas and Mexico, Central America and the north coast of South America. In particular, the term is most strongly associated with that stretch of the Caribbean coastline that runs from the ports of Porto Bello on the Isthmus of Darien in Panama, through Cartagena de Indias in New Granada, and Maracaibo to the Orinoco delta on the coast of Venezuela.
From the 16th to the early 19th century, the Spanish Main was the point of departure for enormous wealth that was shipped back to Spain in the form of gold, silver, gems, spices, hardwoods, hides and other riches.
Silver in the form of pieces of eight were brought to the Spanish Main by llama and mule train from Potosí via the Pacific coast, while wares from the Far East that had arrived at Acapulco on the Manila galleons were also then transported overland to the Spanish Main.
The word main in the expression is short for mainland.
- The Buccaneer's Realm: Pirate Life on the Spanish Main, 1674-1688 by Benerson Little (Potomac Books, 2007)
- Etymology Dictionary: main (n.) Retrieved 20 Aug 2014
- Archived version of Reefs, Wrecks and Rascals http://web.archive.org/web/20120206112400/http://www.melfisher.org/reefswrecks/spanish.htm