What is a caravel and why was it significant in the 1450 to 1750 time period?

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!

logging hope this

cultural history is your answer