Answer:
In the Treaty of Paris, the British Crown formally recognized American independence and ceded most of its territory east of the Mississippi River to the United States, doubling the size of the new nation and paving the way for westward expansion.
In the baroque period
(and even today) operas began with the overture. It was an instrumental
introduction to the opera. Eventually, these were separated from the opera in
Romantic era and led to the creation/birth of the orchestra <span> and orchestral music such as symphonic poems,
whom composers such as Beethoven and Mendelssohn began to use the term to refer
to independent, self-existing instrumental, programmatic works.</span>
The eightfold path ended suffering in people.
With the rising numbers of the human population after having steady lifestyles, many people come together (those who think pretty much the same) and lived in the same area. These soon formed civilizations like Mesopotamia and the such. They found a common language, and built cities, forts, and towns, while growing and harvesting crops around it. Soon, when the city is large enough, the citizens may start to reach out to other cities to make pacts and NAA (non-aggression-pact).
Now, after years, early civilizations may cooperate by trading resources that each have (that the other doesn't), for example, trading fish for "better" lumber, or trading metal for livestocks. As the trade increases, so do their co-operations, and the more each city cooperates with others, the more products they have. Before, they would have to work with what they can grow, cut-down, and find, but later on, with more resources that they can access, they can build much more advanced buildings, tools, etc. This is how a civilization thrives.
hope this helps