The answer is the last one
The event that occurred in the 4th Crusade was the Crusaders attacked Constantinople. The sack of Constantinopea took place in April 1204, during the 4th Crusade. The Crusaders attacked, destroyed and robbed during the assault of Constantinople. (Hope this helps! :)
<span>Union General </span><span>William T. Sherman led
a march from Atlanta to Savannah that destroyed the buildings, farmland and
homes. This is called the Savannah Campaign. The main reason why Union General
Sherman made this march is to scare the civilians.</span>
My answer is The Union was able to stop Confederate supplies from entering Florida.