Who is famous for writing the book, that advocated absolute power, “The Prince"?

The justinian code was created because justinian wanted to strengthen his large empire with

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.

What happened in the tinker v des monies? and why is it important what happened in the hazlewood v. kuhlmeier? why is it important?