The Buton tribe is an indigenous group living on Buton Island in the southeast Sulawesi region of Indonesia. They are part of the larger Butonese ethnic group, which is historically known for being a community of skilled seafarers and traders.
The people of this tribe are born with striking, bright blue eyes. This feature is very unusual for people in Indonesia, where most individuals are born with dark-colored eyes.
The Science of Waardenburg Syndrome
These beautiful and unique blue eyes are caused by a rare genetic condition called Waardenburg Syndrome. This disorder affects about 1 out of 42,000 people and disrupts the way pigment cells develop in the body.
Besides changing eye color, the syndrome can also cause congenital hearing loss and patches of light skin or white hair. In many cases, a person might even have one blue eye while their other eye is brown.
The condition is passed down through families using different inheritance patterns. In this tribe, the trait remains common because of endogamous marriages, where people marry within their own small community.
According to the National Library of Medicine, scientists have found that mutations in several different genes are responsible for these physical changes. These genes, like PAX3 or MITF, control how cells called melanocytes move during a baby's development.
There are four different types of this syndrome, each with its own specific physical characteristics. While Type I often includes widely spaced eyes, Type II is more likely to cause significant hearing loss.
Management of the condition usually involves regular eye checkups and early hearing assistance or rehabilitation. Despite these health challenges, individuals with the syndrome can usually expect a normal life expectancy.
The Cultural Identity of Buton Tribe
The history of these blue eyes may also be linked to Portuguese explorers who visited Sulawesi in the 16th century. During the spice trade era, Portuguese seafarers established trade relations and sometimes married local women.
According to local legends, King Siompu II even married his daughter, princess Wa Ode, to a Portuguese sailor named Pitter. Their descendants are believed to be the first generation of blue-eyed people on the island.
In the past, these children often faced bullying or felt different because their eyes were seen as strange by others. Some children even avoided social interactions because they felt inferior or had low self-esteem.
However, the rise of social media has changed how these villagers are viewed by the public. Today, their unique eyes are celebrated as a beautiful asset and a unique part of Indonesia's diversity.
The Buton people also maintain a rich culture deeply rooted in Islamic traditions and communal values. They practice specific rituals like Cumpe and Sampua to strengthen their family and social bonds.
They also take great pride in their traditional clothing, including the Buton Alana Bulua and hand-woven tenun sarong. These cultural practices show that the tribe has a deep identity that goes far beyond their physical traits.
