The phonograph and the motion picture camera.
Hope this helped!
Washington had been a general and in command for years, serving for the colonies and had leadership experience and proved his skill in decision making. He operated his troops well and commanded respect from everyone he encountered, making him the only president to have a unanimous vote in his favor.
There are many different people who have power. Therefore, there isn't one person who has all the power. Also, a system of checks and balances helps make sure that nobody takes more power than what is given to them.
