Hi there, I recently read the post by Ed Yong on the evolution of our language measured using Google Books. Google Books apparently has 12% of everything that has ever been published! A group of scientists prepared a tool to analyze this enormous amount of data and you can try it yourself!
What it does is it shows you how often certain words (specified by you) have been used in print in history. I found some interesting examples.
devil vs. god
life vs. death
sex vs. drugs vs. rock and roll
Classic from Ed’s blog: burnt vs. burned