

For the Philippines it is said to be the LAGUNA COPPERPLATE and is dated back to 900 AD (obivously before the nation, but still the oldest of the land!)
it was written in a form of the Indic Script (Kavi)? but the language mixture of Old Tagalog, Old Javanese, Old Malay.. but eventually this complex writing script was replace by another form of script which would later be known as baybayin. And it is the script the Spaniards recount seeing when they came to the islands. it was used by the Tagalogs, Ilokanos, Cebuanos, Pampangans, Hiligaynon, Pangasinanese, Bikolanos, and Waray (or the 8 major ethno-lingustic groups of the philippines) Eventually these script fell into disuse.
But variations of this Baybayin script is still used by various ethnolingustic minorities of the philippines, mainly the Hanunóo, Buhid, Tagbanwa and also Eskaya.
http://www.mts.net/~pmorrow/lcieng.htm
http://www.bibingka.com/dahon/lci/lci.htm
And so in the Era when the spaniards came, "The widespread use of an indigenous script (Baybayiin) prompted the religious authorities to publish a book using the Tagalog script to help spread Christianity. In 1593, the Tagalog Doctrina Christiana, a book based on Cardinal Bellarmino's catechism, came out. It was published just a couple of months after the first book published in the Philippines, the Chinese version of Doctrina Christiana, was released."
http://www.bibingka.com/dahon/literacy/literacy.htm







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