This article may be expanded with text translated from the corresponding article in Spanish. (November 2017) Click [show] for important translation instructions.
Google's machine translation is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
You must provide copyright attribution in the edit summary by providing an interlanguage link to the source of your translation. A model attribution edit summary (using German): Content in this edit is translated from the existing German Wikipedia article at [[:de:Exact name of German article]]; see its history for attribution.
The anthem was adopted in 1896 as the winning entry in a competition held by the government. The lyrics were modified slightly in 1934 by Professor Jose Maria Bonilla Ruano, a Spanish grammar scholar. Some verses were softened in their bloody context while others were enhanced in their poetic beauty.
The identity of the author of the song's original lyrics was not known until 1911, when on his deathbed, José Joaquín Palma revealed that he had authored the lyrics.