Why did the Spanish built missions, presidios, and towns in lands occupied by Native Americans? *

What was the historic border between the united states and mexico?

Which man believed that african americans should actively fight for the rights they deserve, even if they put their lives in danger?

23. how does specialization among nations encourage interdependence? nations work together to share labor and resources to produce vital goods. nations sign treaties prohibiting taxes on imports. nations produce specific goods and then trade to obtain things they need. nations that are more developed agree to fund development in nations with limited industry.