(Keep in mind that that is about the Industrial Age) Explain why electricity was so popular compared to earlier energy sources?

Because people found an extra source of energy with an incredible capacity for work.

The University of Texas just recently removed a Confederate statue of Robert E. Lee. Robert E. Lee was a commander of the Confederate army and had a statue in the University of Texas for many years. The bringing down of the statue bothers some and pleases others. For those who oppose the operation, they argue that statues such as Robert E. Lee's carry history with it that must be learned from to avoid history from repeating itself. Those who support the statue coming down say that it symbolizes racism, and opposes the diversiy cherished in America. Some wonder if the removal of statues are caused by the tense political climate, brought upon protest of both alt left and alt right groups.