The flag of the state of Mississippi was first adopted by the U.S. state of Mississippi in April 1894, replacing the unofficial flag that had been adopted in 1861 when Mississippi was a Confederate state. The flag was subsequently repealed in 1906 but remained in de facto use. When a referendum failed for a new design in April 2001, the state legislature voted to readopt the historic design that same month. Since Georgia adopted a new state flag in 2003, the Mississippi flag is the only U.S. state flag to include the Confederate battle flag's saltire.

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