One of the most often cited objections to pretribulationism is that it is a new teaching in church history having only come on the scene in the 1830s. It is often argued that if the pre-trib rapture were biblical then it would have been taught earlier and throughout church history. In the last decade, individuals have found a number of pre-1830 references to a pre-trib rapture. Here is a summary of that evidence.
Ice, Thomas D., "A Brief History of the Rapture" (2009). Article Archives. 4.