Over time, people have used a variety of methods to stay cool before air conditioning was invented. From the Babylonian Empire to the modern day, people have been innovative when it comes to lowering body temperature. The infographic provides a timeline of how different methods for cooling down. It also gives five unique ideas to lower body temperature and lists the hottest areas in the world. Although most of the world doesn't experience such extreme temperatures, there areas that still get warmer, so people need to find ways to cool down. From air conditioning, to cooling and misting systems, it is easier today than it was 1,000 years ago.