Why did merchant class arise in Mesopotamia

Most criminologists agree that juvenile crime is less violent today than it was in the early 1990s. according to the text the reasons cited for this decline include what?

What are new social classes emerged due to advancement in agriculture ?

How did the war of 1812 contribute to an increase in u. s. manufacturing? a) the war provided more resources for factories to increase production. b) the war promoted trade between countries so that americans could focus on fighting. c) the war cut americans off from their previous supply of imported manufactured goods. d) the war limited transportation in america, making it necessary to import manufactured goods.