As factories were built in urban areas, people flocked to the cities in search of work. This led to a rapid increase in the urban population, which in turn led to a host of social problems, such as overcrowding, poverty, and crime.
Battle of Actium and Battle of Kanne are listed in history textbooks, but there is no textbook in Japan that describes the Battle of Pharsalus. Thanks to that, I didnt even know the existence of this battle until I became a college student. It can be said that it is a battle of higher importance