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Chinese civilization didn't collapse. It is a continuous civilization in the latest 5000 years.
The decline of Zimbabwe was from poor management and political corruption,
It is not known what happened to the Great Zimbabwe civilization.
zimbabwe
NKY
no i came here
earthquakes and civil war
HIV and cholera are possibly the commonest diseases in Zimbabwe. The government has allowed the health system to collapse.
the Maya civilization began to collapse
they collapse in the 900s
they collapse in the 900s
they collapse in the 900s