3. Zombie
The idea of a zombie apocalypse is scary or exciting to some but like the vampire, the zombies characteristics are slowly changing on how the media portrays them with an exception that zombies are usually violent and just wants to eat.
The idea or even the English word zombie was first recorded in 1819 which came from Africa. In the Haitian zombie folklore, zombies are dead people that are physically revived by using necromancy of a Bokor. A Bokor is a sorcerer or priests which uses Vodou. The zombies are used as a personal slaves and has no will of its own.
So we can say that the first zombie was caused from the fear of the dead moving on its own. Which got reanimated using magic and after decades goes by and people are starting to think differently, now zombies are usually caused by some chemical or virus which makes people into mindless beings that attack just for food.