Changes

Slavery was found in the history of most civilizations.  Slavery flourishes where there is a high demand for labor and not enough workers. When the workers are plentiful, slavery dies out because it is unprofitable. That is, it becomes cheaper to free a slave and hire low cost paid labor than to buy and maintain slaves.  Typically, when it had almost died out, it was made illegal by the government, as in Brazil.

Slavery was found in the history of most civilizations.  Slavery flourishes where there is a high demand for labor and not enough workers. When the workers are plentiful, slavery dies out because it is unprofitable. That is, it becomes cheaper to free a slave and hire low cost paid labor than to buy and maintain slaves.  Typically, when it had almost died out, it was made illegal by the government, as in Brazil.

The most famous instance of slavery was in the American South until it was forcibly ended during the [[American Civil War]] (1861–65)--the only major war in world history fought over slavery.

The most famous instance of slavery was in the [[The South|American South]] until it was forcibly ended during the [[American Civil War]] (1861–65) – the only major war in world history fought over slavery.

==Economics==

==Economics==