Has gluten intolerance always existed? why is it so common nowadays?

Gluten trend: Celiac disease has always existed in which people need to avoid gluten. Overall this is a small percentage of the population. Recently gluten has become a trendy protein to blame for various things in the media and in business. It has become very big business. It is not necessarily that so many people are all of a sudden intolerant but rather they are blaming many different ailments on gluten.

Yes/recognition: This is a disorder that has likely existed since the introduction of gluten source grains. However, we have not always had the lab tests/procedures available to focus our workup to the proper diagnosis. Lab testing has shown many that have sensitivity without full blown celiac disease. (biopsy proven) It is also trendy to go gluten free for all sorts of mythical benefits in humans (& even pets)