Long Horse was established as a legend when a picture of the creature started spreading over the Internet since 24th August 2018, when a user named Trevor Henderson published a picture showing Long Horse, with the description that the user had a dream of the horse beforehand.
Future on, another picture has been released of the creature by Trevor, where it appears to be in the suburbs, and he named the creature Long Horse. An ancient cave painting has also been found of the Long Horse around three humans, and in the description it is revealed that Long Horse has been around since ancient times.

Interestingly enough, the ancient drawing depicts that Long Horse is the humans' protectors. He is purely harmless, and his goal is to warn humans of upcoming dangers. If a human hears a neck crack or sees the long neck of the creature, the message is that a disaster will occur, not because of Long Horse, but because of what will happen later on.

One more picture of Long Horse has been posted. It simply says, “a new sighting. he’s on the move”, meaning Long Horse is most likely going somewhere to warn the people in that area of an upcoming disaster.