Why should you read history?
History is the blueprint of the future.
You see, the reason we study history and read about the events that have already occurred is to realize how far we've come and take note of the mistakes done in the past so as to not make then again.
That's the reason why we look back to our past ourselves, our old Facebook posts, our old achievements, just to see how long we've come.
History does that, but on a macro level and enables us to understand how the various civilizations around the globe have evolved, what all they did to improve themselves, and where all they went wrong.