If the time of the end does not come until 1844, then we should not see a rapid increase in knowledge and understanding until after that time. But this is not what we find in history. The rapid increase in science and invention began with the industrial revolution in the late 1700’s. But the understanding of prophecy also rapidly increased after 1798 and Adventists have always equated this with the increase of knowledge at the time of the end. If the time of the end did not come until 1844, the prophecies would not have been understood till after that time and the first and second Angel’s messages could not have been preached.