A is a group of people with a shared identity and culture (a nation) who possess their own territory and state government, or a state-level political system that contains all and only members of one nation.

Nation state

Explanation:

Nation state is the community of people in which citizen tends to share a homogeneous factor in common such as culture, language etc.People have their own state in independent form where they are conscious of it being the mainstream.

Cultural boundaries, ethics, history of such nations tends to match with the political aspect of the state.Example of nation-state are Japan, Iceland , South Korea etc.  

- "ethical issues. deception – the participants actually believed they were shocking a real person and were unaware the learner was a confederate of milgram's. however, milgram argued that “illusion is used when necessary in order to set the stage for the revelation of certain difficult-to-get-at-truths.” "

- "milgram's work was conducted in the early 1960s before the current.the studies ignited a debate about the ethical treatment of participants. what appear to be dangerous, if not deadly, electric shocks and the by today's ethical standards, many questions about the research have gone unanswered."

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.