Original: A rival flag of vertical black and red panels was used at various times, most recently in the period from May 25 1964 to February 25 1986, during the family dictatorship of François and Jean-Claude Duvalier.
Simplified: From May 25 1964 to February 25 1986, during the dictatorship of Francois and Jean-Claude Duvalier, the country had a different flag, in red and black, and divided vertically, not horizontally.