Hans Rosling 200 years

  Hans Rosling explained how the life expectancy and the income of countries in 4 minutes. A lot of developing countries were left behind due to the industrial revolution. All the other countries were able to produce mass quantities of products and trade between countries. That leaded to more money for countries, they were able to use that for better medicine and health care and people were able to live longer. Countries after the industrial revolution that were't doing so good , couldn't trade with people maybe because lack of communication but they have resources countries need such as oil.

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