The Himarima Tribe, Brazil
The Himarima tribe is a tribe that, still to this day, we don’t know much about. They’re native to Brazil and have remained uncontacted by civilization ever since their existence. Nobody knew of their existence until the year 1986. They live along the Piranhas River in northeastern Brazil, and they speak an unknown language.
The population was estimated to be more than 1,000 members in 1943. The first time they were in contact with people was when ten members, including women and children from the tribe, came looking for help from people near the river. The people whom they sought help from ended up killing them and kept the children as slaves. To this day, no one knows or has heard from the Himarima tribe again.