At least one body known as "Green Boots" [1] is used as a common milestone. His identity is unknown for certain. The reason one does such things, though, is be

At least one body known as "Green Boots" [1] is used as a common milestone. His identity is unknown for certain. The reason one does such things, though, is because they're difficult, so I'd imagine the bodies are motivating - focus or you'll be the next milestone. [1] - https://en.wikipedia.org/wiki/Green_Boots https://en.wikipedia.org/wiki/Green_Boots