offspring blue eyes in Indonesia

In Siompu Island, Southeast Sulawesi, there is a unique tribe that resembles the foreign Caucasians. The most striking resemblance is the iris color and their hair. They are blue-eyed and slightly blond hair color.
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according to history, the color of iris and unique hair is emerging because it is known some tribe members on this island to do a cross wedding with the Portuguese in the 16th century