The one-child policy had people pay special fees as punishment for having more than one-child. This led to a large number of hidden undocumented children that were hidden to avoid breaking the law. This mostly occurred in rural areas and was a big problem for the government.
The Haitian rebellion was François-Dominique Toussaint Louverture.
All are true because Russia needs Crimea and Africa is so messed up because of the boundaries and opium war forced China into accepting European trade terms