Some Christian groups see themselves as uniquely restoring original Christendom. Such groups use the term "Great Apostasy" in a sweeping way, over all of Christendom beyond themselves. Such groups tend to differ on exactly when the Great Apostasy took place, and what the exact errors or changes were. Ultimately, such groups claim that true Christianity was generally lost until it was disclosed again in them. The term "Great Apostasy" appears to have been coined in this narrower, technical sense, by "Restorationists". The term may sometimes be used in this sense by other groups claiming their unique position as representing Christianity.