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

Here’s a [logarithmic graph](https://commons.wikimedia.org/wiki/File:World_population_growth_(lin-log_scale).png) of population, where small populations are exaggerated and large ones are unserstated. Easier to see that population stayed rather steady until 7000 years ago, and rose at a steady rate until around 300 years ago, and rose even faster in the last 100 years or so.

I’m curious about the events around 5000 BCE, but the more recent increases are definitely due to science and cultural acceptance of it. Industrial food processing and germ theory mostly explain the events around the 1700s. A better understanding of nutrition, medicine, agriculture, and improvements in fertilizer mean we can sustain people for far longer.

I’d argue that people were having sex at roughly the same rates all along, but that everyone’s health and longevity has vastly improved.

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