Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
Watch 6,000 years of people moving to cities
(
vox.com
)
2 points
by
zw123456
on June 20, 2016
|
hide
|
past
|
favorite
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
