Nationalism encouraged people with a shared identity to declare war on all those who did not share their beliefs.
separate themselves from those who were unlike them.
be open to other people’s traditions, ideas, and beliefs.
convince other people to share their common bonds.

separate themselves from those who were unlike them.

Explanation:Nationalism is a perception, creed or political ideology that entails an person identifying with, or turning into attached to, one’s country. Nationalism entails national identification, by way of contrast with the associated assemble of patriotism, which involves the social conditioning and personal behaviors that support a country’s selections and movements. From a political or sociological perspective, there are  primary perspectives at the origins and basis of nationalism. One is the primordialist perspective that describes nationalism as a mirrored image of the historical and perceived evolutionary tendency of human beings to arrange into distinct groupings based totally on an affinity of start. The other is the modernist perspective that describes nationalism as a current phenomenon that requires the structural situations of contemporary society if you want to exist. An alternative angle to each of these lineages comes out of engaged theory, and argues that even as the shape of nationalism is contemporary, the content and subjective attain of nationalism relies upon upon ‘primordial’ sentiments. There are various definitions for what constitutes a country, but, which ends up in several exceptional strands of nationalism. It is able to be a belief that citizenship in a kingdom need to be restricted to at least one ethnic, cultural, spiritual, or identification group, or that multinationality in a single nation have to necessarily include the right to specific and workout countrywide identification even by means of minorities. The adoption of countrywide identity in phrases of historical development has generally been the result of a response by way of influential corporations unhappy with conventional identities because of inconsistency among their described social order and the experience of that social order by means of its individuals, ensuing in a scenario of anomie that nationalists are looking for to clear up. This anomie outcomes in a society or societies reinterpreting identity, maintaining elements that are deemed proper and doing away with elements deemed unacceptable, with a view to create a unified community. This improvement may be the result of internal structural issues or the result of resentment via an current institution or businesses towards different communities, specifically foreign powers that are or are deemed to be controlling them. Country wide flags, country wide anthems and different symbols of country wide identification are normally taken into consideration exceptionally important symbols of the country wide community.

answer: 25.8 years old or 25 years old

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!