All ideas start somewhere and usually you won’t find a historical marker commemorating the event. What you might find are many people that will tell you how a concept was developed, what the intent of the concept was and even perhaps that they were there.
In many cases they may even have convinced themselves that the stories they have created are true. Not to be malicious but rather because we all want to be part of something bigger and more important than ourselves. Claiming involvement and ownership can also be a mirror image of the “not invented here” syndrome.
All ideas were invented somewhere, probably not here but I think we can be a bit fuzzy on the where question if it helps an organization to consider a new idea. Even Mary Poppins used a spoonful of sugar to help the medicine go down.