A semicolons NEVER should be used to try to create a "pause" longer than that achieved by a comma. If you can use a period correctly, then you can use a semicolon correctly. A semicolon is used just like a period, but it is used to separate two complete sentences when the sentences are closely related in meaning.
Hello,
The excerpt from "Paul Revere's Ride" that supports the theme, heroes help people in times of danger, is excerpt B, "In the hour of darkness and peril and need, the people will waken and listen to hear".
The "people" are considered to be the heroes in this excerpt and they appear in the "hour of darkness and peril", which is danger, to help those in need.
Under the leadership of the Umayyad dynasty Damascus became the capital of the Muslim world.