Is china the only place with a one child policy?

No, China was not the only country with a one-child policy. Other countries or regions that have or had a similar policy include:

- Singapore: Singapore implemented a one-child policy in 1973 to curb its rapidly growing population. However, the policy was subsequently relaxed and eventually discontinued.

- Vietnam: Vietnam had a one-child policy in effect from 1988 until recently, when it transitioned to a two-child policy.

- North Korea: North Korea is believed to have a one-child policy, but information about its population control policies is limited and not officially confirmed.