If the speaker is using the pronoun "I," that means they must be telling the story in the first person. They appear in the story and tell it from their own point of view.
The correct answer is the Battle of Port Hudson (also known as the Siege of Port Hudson.)
This battle took place from March of 1863 until July of 1863. This battle between the Union and Confederacy fighting over a strategic location along the Mississippi River. The goal of the Union army was to take over Port Hudson from Confederate control. Continuing to take over different ports along the Mississippi River would give the Union a significant advantage, as it would limit the amount of supplies the Confederates could send to each other.
Hippocrates was the founder of medicine, regarded as the greatest physician of his time, based medical practice on observations of the human body. Where as Herodotus wrote about the wars between Persia and Greece and he became one of the first true historians in Western civilization.
You didn't really provide the letter out of which we should be able to deduce the benefits. However, Crusaders would say that the benefit of the crusaders were that they regained the holy land and could also profit out of this either by looting and pillaging neighbouring muslim villages or because they thought they were closer to God this way.
