What is Obama's last name?

Before the civil war, the south’s economy was based on enslaved labor. large cities. immigrant workers. factories.

What was the final spark that ignited the “european powder keg” and started world war 1

This term refers to events that occurred during the great depression where panicked customers withdrew their deposits in fear that the banks were going to close and their investments would be lost. example: much of the great depression's economic damage was caused by nationwide