Who was proclaimed the new "emperor of the romans" by pope leo iii in the year 800?

How was george washington able to defeat the british in the battle of trenton and princeton

Those who resisted the mongol invaders were attacked and their towns burned; those who cooperated with them also were attacked and had their towns burned. were treated fairly. were taken into the tribes and treated as mongols. were sent away to find new homes.

What was the focus of the stanford study-pls