Since the 17th century Europe has changed in many ways.
Geographically: The Ottoman Empire has turned into a smaller country of Turkey, Germany was created from many small German states, and many new countries have formed.
Population: Since the 17th century, the population has grown a lot because the discovered industry since then and have many organizations to keep peace, like the EU.
Religion: Many countries are more secular because religion is not as important anymore. And they have more immigration because the are a place where people can live well and earn money, so people in places like Syria and Russia can move to Europe to live better, which means more immigration is happening.
<span>Michelangelo did this wonderful painting </span>
The state governments developed independently from each other. The Constitution made it clear that each colony would be a state operating as an independent country. This had been observed during the Continental Congresses.It was thought that it was the only wasy to make the nation grow. As a consequence, <em>each state developed its own government with its own constitution.</em>