''The circular blue and white BMW logo or roundel evolved from the circular Rapp Motorenwerke company logo, from which the BMW company grew, combined with the blue and white colors of the flag of Bavaria. The logo has been portrayed as the movement of an aircraft propeller with the white blades cutting through a blue sky — first used in a BMW advertisement in 1929, twelve years after the roundel was created — but this is not the origin of the logo itself.''
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