When it comes to long stretches of time, humans have a hard time visualizing it. A thousand years, a million years, it's all just numbers. Fortunately, Buzzfeed put together this little video to show exactly how wrong you are. How long ago was Cleopatra born? How long have humans been around relative to the universe? The answers may surprise you.
[Via YouTube] Did this surprise you? What other facts about time can you share?