Response to Query
In response to a query posted by Bro. Junie Tan as a comment on this blogsite on December 25, 2006, I returned to my source (Acts and Decrees of the First Plenary Council of the Philippines) and found out the exact document declaring the Immaculate Conception of Our Lady as Principal Patroness of the Philippines. The document is an Apostolic Letter by Pope Pius XII entitled Impositi Nobis, dated 12 September 1942 (Acta Apost. Sedis XXXIV, p. 336). Thanks!