As you will learn in this module, certain periods in British history have been given descriptive names. The Middle Ages are also called the "Dark Ages" because historians feel that this time period was one of slow intellectual development and few advancements. What are some other nicknames you have heard for other time periods in history? Take a few moments to try to think of a few others. One example would be the "The Jazz Age," which refers to a time in American history when jazz music and jazz culture flourished in the U.S.