Answer:
separate themselves from those who were unlike them
Explanation:
As nationalism emerged in kingdoms and other regions of the world, where previously the notion of being a group with a common past, culture and history, and the shared language similarities did not exist before.
A conscience of sharing this heritage make them different to other groups that promoted other set of values.
Nationalism was driven often by romantic feelings, or revolutionary ideals, like the wave that schocked European continent with Napoleon Bonaparte.
The desire of people to have a shared identity often led to social movements that wanted to form their own nation-state, also leading to wars of Independence: (For example Serbia, and Bosnia in the Austro-Hungarian Empire). Poland sought always independence from the Russian and German oppresors (embracing the so called Romantic -Nationalism).
It made it easier for people to reach each other without traveling or sending mails
Epoch. Epoch “current era” commences with year 1.
Is that right? I hope that was what you were asking and what you were looking for.
The answer is <span>a. marine west coast</span>. The ocean current cools the shore. Note that the other choices are not near an "ocean".
Jean Jacques Rousseau from his book The Social Contract (1763)