Sign up for FlowVella
Sign up with FacebookAlready have an account? Sign in now
By registering you are agreeing to our
Terms of Service
Loading Flow
Around 900 the Mayans left their cities and went to the hillsides.
Today our scientists don't know why they left, but we have theories.
There might have been too many people and no food or water because of the fighting. Kings demanded too much. Hard to grow crops.