<span>C. They were executed by electric chair.
The Rosenbergs were a married couple that were convicted of conspiracy of espionage in 1951. They were sentenced to pay for their crimes by execution in the electric chair. This was the most controversial espionage case of the cold war.</span>
Answer:
They started around the year 476 CE when the Western Roman Empire ended, and continued until around the time Christopher Columbus arrived in the New World in 1492. The 'Middle Ages' are called this because it is the time between the fall of Imperial Rome and the beginning of the Early modern Europe. This period of time is also known as the Medieval Age, the Dark Ages (due to the lost technology of the Roman empire), or the Age of Faith (because of the rise of Christianity and Islam).
Explanation:
The correct answer is the peace of Westphalia
It was a series of treaties drafted and ratified between 1646 and 1648. It was decided that the peace treaties would be used to end numerous different wars in Europe which all belonged to the classification of the Thirty Years War. The peace established what sovereign states would mean and be and would create a legacy for others to adopt as well.
Khanacademy.org overview hope this helps :)