The then-<a href="https://en.wikipedia.org/wiki/Villa#Post-Roman_era" id="mwjw" rel="mw:WikiLink" title="Villa">villa</a> of <a href="https://en.wikipedia.org/wiki/Mayagüez,_Puerto_Rico" id="mwkA" rel="mw:WikiLink" title="Mayagüez, Puerto Rico">Mayagüez, Puerto Rico</a>, formally receives its city charter from the Royal Crown of Spain.