The aforementioned document listing Puerto Rico's public sector holidays for the upcoming calendar year 2020, follows the "Proyecto del Senado 1113", signed by he Governor of Puerto Rico, Alejandro García Padilla, 4 years ago (2014-07-29), slightly amended a year later (2015-10-21), and which immediately reduced the number of annual non-working public sector holidays in Puerto Rico, by lumping 4 of the annual non-working public sector holidays of Puerto Rico into one, the "Día de los Próceres Puertorriqueños" (2014-07-29, 2014-07-23, 2014-07-19, 2014-07-01, 2014-05-22, 2014-05-12 and 2014-03-19).
Below are links to the news stories referred to in the above "Puerto Rico 2020 Public Holidays Announced" news story, as well as links to subsequents news stories which refer to the present news story.