Complex sentence: During the American Civil War, Union signal officers used the Old Dorm cupola on June 30,1863, and on July 1 Michael Jacobs, a chemistry and mathematics professor at the college, led Union Battle of Gettysburg officers to the cupola to observe the battlefield.
Split into simpler sentences: During the American Civil War, Union signal officers used the Old Dorm cupola on June 30,1863. On July 1, Michael Jacobs, the chemistry and mathematics professor at the college led Union officers to the cupola to observe the battlefield.