Contemporary researchers of ancient civilizations discovered a weird and unexplainable custom of ancient Mangbetu tribe, as well as the ones of some other places far far away. This custom I’m about to talk about is called Lipombo and literally it is the enlongating a skull shape. People in this tribe of Congo (Africa) deliberately did that since the early childhood, but interestingly another tribe in Peru did that too. Having in mind that we are speaking of the ancient times when people had non of the communication it is rather mysterious how did the two tribes come upon the same idea. 

There are many theories about this. One thing the researchers know for sure is that it is not any kind of genetic anomaly, they did it by themselves, they still do, by tieng some cloth on their heads since early days so that the skull forms in alien-like way. Speaking of aliens, there is also a theory that they were thaught how to enlongate their skulls in order to achieve the bigger massed brain and thus be smarter and more inteligent, not that they’re aliens themselves. But the ones who taught them were aliens the visited them in the past. Another theory including aliens says that there weren’t thaught how to do it, but they were imitating aliens they saw. For now, the science doesn’t have any slid proof or clue, neither about this Mangbetu tribe in Africa, nor for the Peruan tribes. Only connection that it is certain for now, is that there must be something in the fact that those two tribes share the same geographic width.