A Brief History of the Apocalypse
Floaters been promotin' "YOUR moral decay is going to get ME into heaven" for a helluva long time. According to Isaac Asimov's Book of Facts the first predicted Apocalypse was in ca. 2800 BC. Even if you discount that for some reason, the next was in 634 BC.
Depending on how you define the Apocalypse, the end of HUMANS or the end of the WORLD, the real apocalypse comes in ca. 4,500,000,000 AD when the sun will swell into a red giant star, swallowing Mercury, Venus, Earth, and perhaps Mars. This will be the true end of the world!
Personally and IMNSHO, the way we burn shit to save time and effort, not to mention get around and generate electricity, is going to end the human race LONG before then. Maybe in this century. We're probably already past the tipping point...
Consider this my public apology to my grand-kids/great grand-kids that I didn't do more, and earlier, to battle the anthropogenic global climate change deniers. Starting with the Bible-thumpers, then moving on to Big Oil funded quasi-"scientist" and (you have to have seen this coming) Republicans and ESPECIALLY teabaggers...a "vast conspiracy" of scummy people determined to make the world a better worse place.