Which prince of moscow led the russians to freedom from the mongols?

How does the u.s. constitutional republic compare to authoritarian forms of government

What are the two powers that the federal and state governments share?

    which of the following was anecological  result of european exploration from 1400 to 1800?   a.  increased trade with east asia      b.  the spread of epidemic diseases      c.  expansion of english territory      d.  the spread of christianity