1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas.
a)the Crusades,***
b)the Reconquista
c)the Vikings
d)the Magana Carta
3.king granted land to lords who in turn granted land to knights under the system called
a)manorialism
b)the rule of law
c)charlemagne
d)feudalism***