What made the world population increase so drastically after 1900?

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Excuse me, if this is the wrong sub for this but I’m genuinly confused. According to [this graph](https://flic.kr/p/5T5hkE) I found by accident, the world population barely increased at all between 1300 and 1900. And then it suddenly took off like crazy. What caused this sudden fast increment of the world population?

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Anonymous 0 Comments

As few others explained, the Haber-Bosh process of making synthetic ammonia and produce large quantities of fertilizers is considered the single most important cause. Technology and medicine, discovery of vaccines and antibiotics helped but without producing more and more food you can’t feed a growing population!

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