Era is a research area in the field of historical studies that focuses on a particular period of time or historical epoch. Researchers in this field analyze and interpret the culture, politics, society, and events of a specific era to gain a deeper understanding of its impact and significance. By studying a particular era, researchers can uncover insights into the development of civilizations, ideologies, and historical trends that shaped the world during that time. This research area allows scholars to explore the complexities and nuances of a specific historical period and draw connections between past and present.