All this four when they started playing the game would have thought of, even if individually, that one day they should achieve this feat considering it something achieveable even if very difficult.. after long period of manifestation of this thought within each individual (you may even call it autosuggestion) and the directed thoughts of others to the each individual it became a reality...:)

BTW the last no. is interesting...this I am sure they wouldn't have thought of...and so should not fit into the above theory or may be it can...I dont know, am confused now....:)