Did you ever hear of The Republic of West Florida.
Yes, for 74 days The Republic of West Florida (composed of modern day Florida panhandle, Mississippi, Alabama and portions of Louisiana was a independent republic. And the Bonnie Blue Flag, a single white star on a blue field, was its flag.
In 1810 the settlers in the Spanish territory of West Florida revolted.
74 days later, Florida was annexed by the United States of America.