How did electricity impact the US from 1870-1920?

How many American ambassadors have been killed in the line of duty? What did the Declaration of Independence say? What right and institutions are necessary for a government to be democratic? How does the history of the know nothings shed light on your modern immigration debate? What is the 14th amendment in simple terms? When does private opinion becomes public opinion? Why did the patriots need several different riders? Can a state run without government? Who coined the expression The Four Hundred meaning New York's socially elite? Are there any living descendants of George Washington? What was pericles job? Why was the religious right upset with some of Reagan's supreme court appointments? What is a real governmental grant site? What are the names of the countries that practice confederal system of government? What did cavemen use as weapons? What is true about the executive departments? Did President Bush negotiate any treaties without congressional consent? Head of the food administration who pioneered successful voluntary mobilization methods? What does the republic stand for in the Pledge of Allegiance? Suppose a country saw a new leader rise to power after a political revolution. The new leader focused strongly on building military power and controlling the lives of citizens. Secret police were used?