The 31 Star Flag 1851
This Flag became the Official United States Flag on July 4th 1851. A star was added for the admission of
- (31st) California - September 9, 1850
This was the official flag for seven years. The three Presidents who served under this flag were; Millard Fillmore (1850-1853), Franklin Pierce (1853-1857), and James Buchanan (1857-1861).