It is not an everyday thing that we see mass disappearances. Each mass disappearance brings a lot of mystery, tragedy, and curiosity. There are many civilizations, villages, and people who had been missing for a long time – some have been missing for centuries and we still have no information to understand how it all happened.
Migration and sacrifice are often one of the reasons people disappear, but some of these cultures have disappeared without leaving a single sign behind. No one knows whether their lives were taken away, or did they just leave on their own. There are many theories connecting all of this to alien abductions, but there are no proofs to back up any of the theories related to these events.
Some of these civilizations were knowledgeable, they lived nicely and had no real reason to abandon their homes. It is hard to believe anyone would leave their pets, food, clothing and other things crucial for living behind. We are probably going to stay curious for a long time because not a single case of these disappearances has been solved.
