Congress has the power to establish post offices and post roads, issue patents and copyrights, fix standards of weights and measures, establish courts inferior to the Supreme Court, and
to make all laws which shall be necessary and proper for carrying into execution.
Slavery made it to where families were split apart, and were unable to keep in contact. Mothers couldn't tend to their children enough, and often children were made to also be slaves. Children also got beat, and were unable to eat the correct amount of proportions to stay healthy, children started "Helping" the parents at a young age.
There is no graph, so I can not answer your question.
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