Maria Popova, author of the always thought-provoking site Brain Pickings, once wrote a piece about the book Cartographies of Time: A History of the Timeline. This map, made in 1931, is a page from that book and left me with no option but to stare at it for 20 minutes. Nice way to put the great empires of the past in both time and magnitude perspective. Click on the image to expand it if you want to read the small font info.
Want the long, long history of things? Here you go.