Answer:
World War One, the French Revolution is the most important period in modern European history.
Explanation:
The Revolution birthed the modern nation state. It ended the last vestiges of feudalism in Western and Central Europe. It spread Enlightenment ideas across Europe.
Bronfenbrenner used the term chronosystem to describe the impact of the specific time in history on a person's development. This is made up of environmental events and transition that occur throughout a child's life. It also include any socialhistorical events.
It explains why the framers of the constitution made the government republic.