Answer:
5th century BCE ancient period
They agreed Missouri could be a slave state while, Maine was admitted to be a free state.
c. The establishment of global empires
Causes of the Civil War Causes for the outbreak of Civil War existed in plenty and one of the most prominent among them was the prevalence of slavery in the United States during this period. While the economy of the Northern states was driven by industries, the same was driven by agriculture in the Southern states.
I believe the most recent ice age ended nearly 11,700 years ago, but began nearly 2 million years ago.