In 2013, it was estimated there were more than 100 uncontacted tribes around the world

Amazing and weird fact about uncontacted tribes: 

Did You Know? In 2013, it was estimated there were more than 100 uncontacted tribes around the world, mostly in the densely forested areas of South America, Central Africa, Asia and New Guinea. Knowledge of the existence of these groups comes from infrequent and sometimes violent encounters and aerial footage. source

• Interesting fact of the day
• List of incredible scientific facts
• Amazing facts about animals
• Random history facts