It means that the young people of today don't care about our nation's history so that means they will make the mistakes of repeating history.
Answer:
The trans-Saharan slave trade contributed to the power of
Ghana, Mali, and Songhai.
It was John Brown who died on December the 2nd, 1859, whose death is considered to be a rallying point for abolitionists.
Smith is also known for creating the concept of gross domestic product (GDP) and for his theory of compensating wage differentials. 2 According to this theory, dangerous or undesirable jobs tend to pay higher wages as a way of attracting workers to these positions.
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