halloween blog

Today is Halloween. In class we watched a video of a Swedish guy talk about population and income put together in one graph. It was over a period of 200 years and we watched how the industrial revolution helped increase the average income and lifespan of a person. Every single country in the world was on this graph. The size of the circle of each country tells you how largely populated the countries are. All of the countries used to have an average lifespan of 40 years or lower. Once the wars were over and the industrial revolution started, the population, lifespan, and income increased dramatically.