Which labor system ensured labor supplies for the Inca's massive building projects?
chinampas
plantations
mita

How did the geography of the arabian peninsula affect its religious and cultural diversity?

What are your thoughts about " the attacking on the twin towers". in your own words a little paragraph its for a project i am doing and i want to get intel from other people so that i can put it on my poster. for anyone who gives me there opinion on it : )

Which two groups worked hard as miners and contributed to california's development, even though they faced discrimination? a.) the chinese and the mexicans b.) the irish and the native americans c.) the french and the chinese d.) the mormons and the mexicans