The answer is the first one, crime statistics of youth in cities that have curfews. If crime rates are lower, the curfew most likely works.
Haiti: after the French Revolution, the line in Hate between the rich and the poor grew bigger. The slaves, rebelled and to end this, the French gave slaves rights and abolished slavery. Toussaint L'Ouverture helped to rid Haiti of both British and Spanish influence.
Dominican Republic: In 1801, L'Ouverture invaded the colony and tried to get rid of slavery. Fighting between Britain, France, and Spain, caused problems in the country, but Spain finally gained full control, but they didn't really show interest.
The History of the Standard Oil Company is a 1904 book by journalist Ida Tarbell. It is an exposé about the Standard Oil Company, run at the time by oil tycoon John D. Rockefeller, the richest figure in American history.
