Flag of Cusco
The official flag of Cusco has seven horizontal stripes of color: red, orange, yellow, green, sky blue, blue, and violet. This rainbow flag was introduced to Peru in 1973 by Raúl Montesinos Espejo, in recognition of the 25th anniversary of his "Tawantinsuyo Radio" station. As the flag's popularity grew, Cusco mayor Gilberto Muñiz Caparó declared it an official emblem in 1978. Origins. The question of the flag's historicity is closely related to the "wiphala" or Aymara flag. María Rostworowski in 2010 claimed no evidence that ancient cultures used such a flag, and the Congress of  the Republic of Peru corroborated the conclusion of National Academy of Peruvian History: "The official use of the wrongly called 'Tawantinsuyu flag' is a mistake. In the Andean World there did not exist the concept of a flag, it did not belong to their historic context".