The term 'Phase of History' can be summarized as an ERA, which is a period of time in history that is marked by certain characteristics or events. An ERA is usually defined by the beginning and end of a significant event or series of events, such as a war or a period of political or social change. For example, the Renaissance ERA began in the 14th century and ended in the 17th century, and was characterized by a renewed interest in art, literature, and science.