Answer:

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It involved a military strategy to weaken the Indians.
B since the earth revolves in a circular motion with the sun
Answer:
I believe it's B or D
Explanation:
I think B makes more sense tho
Answer:
The Pisan popes Alexander V and John XXIII are now considered to be antipopes. Gregory XII's resignation (in 1415) was the last time a pope resigned until Benedict XVI in 2013.
Result: Stabilization between 1417–1429 during the pontificate of Pope Martin V and ...
Date: 1378–1417
Location: Western Christendom (primarily Europe)
Explanation: