CAGAYAN
DE ORO AND ITS SURROUNDING were occupied by humans around 377 AD.
Signs of ancient habitation were discovered in 1970 by field researchers
of the National Museum.

The researchers
were exploring Huluga, a place eight kilometers south of the present
Cagayan de Oro City. Huluga is composed of caves and an Open Site
perched on a promontory, overlooking Cagayan River. The Open Site
is the venue of a fortified village, the home of the original people
of Cagayan de Oro.
Inside
the caves were skeletons, pots, potsherds, tools, possibly Indian
glass beads, Chinese pot fragments, and vestiges of possibly Annamese
and Thai wares -- indications of overseas trading. The Open Site
yielded potsherds, Chinese celadon sherds, and obsidian flakes.
Researchers sent a skull fragment to Dr. Jeffrey Bada of the Scripps
Institution of Oceanography in
La Jolla, California, where it was subjected to acid racemization,
a dating technique. Bada then wrote a letter to
anthropologist Dr. Erlinda M. Burton of Xavier University, stating
that the sample came from 377 AD, plus or minus 15 years -- a period
comprising Late Stone Age and Early Metal Age.
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