A portion of Wells Street (Captain William Wells, hero and martyr of Fort Dearborn massacre in July of 1812), south of the Chicago river was renamed Fifth Avenue in 1870 to remove negative associations with the Wells name and the streets disrepute. Fifth Avenue was reverted to Wells Street in 1916. Not to be confused with the Fifth Avenue on the west side, formerly Colorado Avenue.
Both Fifths were named after the famous New York avenue in failed efforts to covey prestige.
Fifth Avenue in 1911, five years before the name of the street was reverted to Wells.