He is majoring in political science at university.

He is a renowned political scientist who has written many important papers.

We should avoid the politicization of sports.

It is not appropriate to politicize this issue.

In psychology, it is important to understand the mechanism behind human behavior.

We adopted the AA system to start a new project.

Monarchy still exists in some countries.

Bureaucracy plays an important role in the operation of the government.

Manorialism was one of the economic systems in medieval Europe.

This change in zoning will have a significant impact on urban planning.