Answer:
A head of state is the public persona who officially embodies a state in its unity and legitimacy. Depending on the country's form of government and separation of powers, the head of state may be a ceremonial figurehead or concurrently the head of government and more.
Answer:
Earliest
Massachusetts education law
The enlightenment
Great awakening (technically before and after the Zenger trial)
Peter Zenger trial
Intro of the ideas of inoculation
Latest
The last one , Invasion of Poland