which were founded by non-Sinitic peoples, or the fact that both [the Great Wall](https://education.nationalgeographic.org/resource/great-wall-china#:~:text=uniting%20the%20existing%20walls%20into%20one) and [the Grand Canal](https://en.wikipedia.org/wiki/Grand_Canal_(China)#:~:text=the%20various%20sections%20were%20first%20connected%20during%20the%20Sui%20dynasty) were not *built* built but ordered to be 'connected' during
environment. There is a global movement to reduce light pollution, and everyone can help.](https://education.nationalgeographic.org/resource/light-pollution)
Still fucking stupid. There's gotta be a better solution
https://education.nationalgeographic.org/resource/plastic-bag-found-bottom-worlds-deepest-ocean-trench
This is an easy to read article [https://education.nationalgeographic.org/resource/seeking-source-ebola/](https://education.nationalgeographic.org/resource/seeking-source-ebola/)
They describe how bats may be involved (but not for sure and maybe not the full story
Bureau of Meteorology](http://www.bom.gov.au/climate/enso/history/ln-2010-12/three-phases-of-ENSO.shtml)
[Climate.gov](http://www.climate.gov/enso)
[NOAA](https://oceanservice.noaa.gov/facts/ninonina.html)
[National Geographic](https://education.nationalgeographic.org/resource/el-nino/)
interested as to where you found that number as all the [sources](https://education.nationalgeographic.org/resource/core/) I found indicated 91 billion years
boilpoil t1_issdi2m wrote
Reply to A brief summary of 3,500 years of Chinese history by gimhae_pyeongya
which were founded by non-Sinitic peoples, or the fact that both [the Great Wall](https://education.nationalgeographic.org/resource/great-wall-china#:~:text=uniting%20the%20existing%20walls%20into%20one) and [the Grand Canal](https://en.wikipedia.org/wiki/Grand_Canal_(China)#:~:text=the%20various%20sections%20were%20first%20connected%20during%20the%20Sui%20dynasty) were not *built* built but ordered to be 'connected' during