07/05/2026
On April 21, 900 CE, over a thousand years before ASEAN, a scribe in what is now Laguna inscribed a debt-clearance document on a thin sheet of copper. Written primarily in Old Malay using the Old Javanese (Kawi) script, with Sanskrit technical terms and Old Javanese honorifics, the Laguna Copperplate Inscription is the earliest known calendar-dated document found in the Philippines. It places Tondo, Pailah, and Puliran in conversation with the Medang Kingdom of Central Java — not as distant strangers, but as part of one shared maritime world.
Discovered in 1989 by Ernesto Legisma along the Lumbang River, acquired by the National Museum of the Philippines in 1990, and translated by Dutch anthropologist Antoon Postma, the LCI rewrote the Philippine historical timeline. Where colonial textbooks once started Filipino history at 1521, the LCI pushed it back six centuries — and proved that Filipinos and Indonesians were already part of a shared linguistic, legal, and cultural system long before the modern nation-state existed. Today, this thin copper plate sits at the National Museum of Anthropology in Manila, a quiet anchor for one of our oldest friendships.
Sources:
https://www.nationalmuseum.gov.ph
https://en.wikipedia.org/wiki/Laguna_Copperplate_Inscription
https://muse.jhu.edu/article/864856
https://opinion.inquirer.net/98769/a-receipt-in-copper