Question: What area is known as the "Isle of 8 Flags" and is home to the Fernandina Beach Historic District?
Sentence (from "Fernandina Beach Historic District"): The Fernandina Beach Historic District was included on the National Register on July 20, 1973, encompassing approximately 1,500 acres (610 ha), bounded by North 9th Street, Broome, Ash, South 5th Street, Date, and South 8th Street.
Relevant evidence: No