Miami is a city located in southeast Florida that has experienced rapid growth over the past century. It began as a small settlement founded in 1896 and named for the Miami River. Miami prospered during the 1920s real estate boom but was later impacted by the 1926 hurricane and Great Depression. After World War 2, Miami saw increased population and became a center for defense against German submarines. In the late 1950s and 1960s, many Cuban exiles fled to Miami following Fidel Castro's rise to power, further expanding the population. Today, Miami has over 400,000 residents and its metro area population exceeds 5.5 million, making it one of the largest urban areas in the United States.